Dark is a 3-year member that is at 20 points and has no records of activity. I know there isn't exactly a way to prove someone's inactivity other than this basis but surely moderators can check?
It'd just be nice to do a little 'clean-up' of usernames.
What do you think?
Who knows, Dark can just log on at any moment and say "Hey guys, I'm back!".
If you really want the name, you'll have to consult Pokemaster.
Unless PM says otherwise, yeah you probably can. If Dark hasn't done anything in three years he probay won't do anything in the future. Dark will most likely be made into Dark2 and you will be given the original name.
How to change your username
How to add a user avatar
Why was my post hidden?
The points system
Flags vs Downvotes
PokemonDb Showdown server
Report minor site errors
Name Origins corrections
Location guide corrections