We found this cache a couple of weeks ago and it is listed as a "regular". It might be tough to tell, but it's one of those honkin' huge ammo cans that once held mortars or RPG's. The cache was placed in 2003, so maybe they didn't have the "Large" size option then. https://coord.info/GCH70G
Evince was run by Prime Suspect, aka Prime Reviewer. He retired as a reviewer and apparently took his coordinate checker site with him. I don't think I had the Evince checker on any of my caches. I tend to use Geochecker and Certitude.
This site has been getting less and less visits lately. I think more people are on Facebook, visiting various geocacher groups on there.
To answer your other question -- I don't think there is a simple way to do that.
I'm certainly not one who would have an idea of how to do this in an elegant way. Key Results and Team Four Paw occasionally check in--perhaps they will have an idea.
My only other ideas would require accessing old logs.
You can do that. The history of each bug is on the bugs page. But when you have a hundred bugs and each bug has many actions you have to tediously go to each bug and then hunt through page after page of logs to find the real drops it's more than I'm willing to do. In the old days I wrote programs that would do this automatically but GC changed their website to prevent that.
As an example, one of my little found caches has 31 bugs recorded. I took the first one on the list as a random sample. That bug has 165 total actions in its history. If this is typical I would have to go through up to 5000 logs, keeping records along the way, to determine if which bugs were actually placed in the cache.