If UVL is the only source of something and does not further explain the source I will always have my doubts. Mentioning in magazines (like in adverts) are not proof of existence. There are numerous cases where a version was advertised but never released. If you yourself must dig so far into getting info for a games existence and its not easily researchable by others I can only advise to give that info on the game page. How should I know otherwise? I also do quite some research before deleting a game and I have some good PCW sources and found nothing backing the entry.
I could create a forum thread for such instances before I delete games created by you to ask you first. The forum has no PM system so I cannot discuss it further. I am quite glad that there is some reaction to my "delete comment". Thats why I wrote the comment. So it does not get unnoted. I will re-create the entry. So no problem.
moby is not complete.
I only trust moby when there is a screenshot attached to a game. In some cases I had doubt a game existed even when there was a moby entry. In no way I trust them with a game not existing because a moby entry does not have such an entry. I guess mentioning moby in that particular case was a bad example.
I'm currently on Apple II
I know and at first I wanted to create screenshots for all the new Apple II games, (maybe you recognized that). But you were too fast for me ;-) completely outpacing me and then I decided to go after my normal schedule. And making screenshots meant for me to also do research for the games and where to get the disk images. At that time I supposed your main source for Apple II games was this list: https://tanrunomad.com/apple-ii-games/ I also know this list and speculated to use it to enter Apple II games for UVL based on the list not so long ago (after I "completed" the Commodor PET project I started with Apple II but eventually skipped it). But there were way too many games on the list which I could find no actual proof of, or it would have taken too long to find out, because the site also does not tell from where the source they claim it exists. Would have been too many "maybe" games for my taste so I skipped the plan. At the very start there were already a few "questionable" Apple II entries. One of the is https://www.uvlist.net/game-251214 and https://www.uvlist.net/game-159475 --> you claim they are confusable. I claim they are duplicates. You can download disk images for both games and its the same game. But I did not delete it because by then I decided not disturb the influx of fresh Apple entries. I am very glad when someone tackles a platform in depth.
I suppose some editors start with an existing game and then try to find platforms it was published on
Thats the way I am doing this right now. Basically I go through magazine reviews. When I find a review to a game I will also check out the other versions of the same game for other platforms and try to make them better by adding screenshots, tagging them and put up version relation, so the game with all its versions is cleaned up and "done". Thats what happened with Mr. Men for Amstrad PCW. I really searched for it quite extensibly. But when PCWiki (the totally best source even for obscure PCW-games with forum where people talk about "has this been released" does not have it) and Google gives exactly not a single match and not a single reference I came to the conclusion that it is likely not a valid entry. It also did not have a CPM or similar tag which could have explained an entry that was done due to platform limitations.
sometimes a start with a list I stumbled across in a magazine or on a website or in a game catalog
Lists in magazines, websites and catalogs are not good proof. Magazines? Oh I have seen reviews in magazines for games on systems that were never released. Not rarely a magazine in the 80s reviewed a game and did not specifiy which exactly they tested it on, but in the platform list they listed several platforms. But quite often it turns out the
game was not released for all the listed platforms. Magazines only told what publishers told them where the game "would appear" on. If I would do a full platform project on UVL I would go with projects like gamebase where for each entry the game 100% exists. Then you are missing a few titles of course, but I just wait until they get added later. I do this with Total DOS Collection for example. I enter early DOS games in UVL when they become "available" and "found" in Total DOS Collection, so I can be 100% sure it exists. I do not enter games from their "missing" list, which has games that supposedly exist or were mentioned somewhere (e.g. old magazines) but which have an unknown status.
Do a Google search for "Apple"
Its a bad search term and I would never use that. But the combination of "Apple I" and "games" brings me to maybe the best resource/forum for games for the Apple I. So google can be used.
I did some more research for Mr Men for Amstrad PCW. The nearest I come is a mentioning in a magazine "The Complete Guide to the Amstrad PCW 8256 and 8512 Number 2", but only in a shop list and its not clear that the version sold is for PCW. It mixes everything Amstrad (CPC, PC and PCW). So still nothing. On the "pro-existence" side is the fact that the publisher Mirrorsoft did publish on Amstrad PCW. I put the tag todo-verifyexistence in the Amstrad PCW Mr Men entry. Although after my personal veryfication job I am still 99% convinced it does not exist. In other cases this would get delete by me now again. But will leave it and link to forum discussion in the tag comment.