Yes, for notification purposes, I hope someday there could be some page a user could look at to show items that are in their collection that were updated or where an item they have in collection was merged with some other item. Currently if I have to do a revert on an item (as described in your quote) I will look into the Collection tab and will likely PM someone about having to change it. I think the last one I did for this was one that Blurks put an edit on a game that was made as EN/UK game, but somehow changed to a Germany release. I sent the PM to him to say that I had fixed the entry and he might need to add the version he really has if he wants. I obviously can't send a PM to everyone who has it in collection to say the entry was wrong for a long time and finally fixed. 
Yeah, that is one feature that i would like to have on that site, knowing if an item in your collection have been edited in any way (probably not as PM, like you do it manually; and i thank you for that
; but like you said maybe in another page where users can check those informations in they want)
But even I can tell some things are not "correct" with my own collection because of edits/merges in the past. I just haven't gone about to figure it out. The only thing I stay ontop of is the Genesis portion, but yeah... a user's collection accuracy is their responsibility and it isn't super easy to know what has changed.
Yeah my collection too need a lot of work but sadly i'm not able to add any of my games anymore, my scanner just broke down three days ago (it worked for less than a year... well i can't say anything about a 20 bucks printer/scanner, even the ink cost more than that... and seriously for that price the quality of my scans were pretty good,
one of the last game i've scanned for example). I can't scan and add any of my games, i'm not in the mood to play and i'm stuck at home with a lot of free time lately so... "Why not doing a little work in the database, like cleaning the only section where my collection is up to date, the European Playstation 2 section !"... that's surprising but it's less messy than what i expected, with all the games that exist for that console and all the variants for the European release i seriously thought i was going to quit after the first page
Oh i have an actual error to report this time:
Las Aventuras de Jimmy Neutron Boy Genius: Jet Fusion (it will be called like this once the edits are accepted)
https://vgcollect.com/item/119067I ask for the back cover of that item to be deleted, the source of that cover is
this one and if you check it you can see that it's marked near the bottom, there is a "By Bl" or "By 81" or something like that on the back cover but that's not why it should be deleted, the best part is that the back cover is heavily edited: all the data on the bottom side is for another game: Onimusha 3 (SLES-51914 and barcode: 5055060922118). I couldn't find any back cover for that variant to confirm if it could be an actual cover error (even if i'm sure it's not, but just in case i keep that picture on my computer to re upload it if i'm in the wrong).
