Sorry if this the wrong place to post it, but I believe the wiki should contain infomation reguarding nicknames when doing trades etc. When trading with a user with nickname, you need to use /realname (Nickname) then screenshot for proper evidence. However, in the wiki thread discussing collecting proper evidence Here I do not see anything about collecting proper evidence when a nickname is involved. Even if a user has evidence, if there is no /realname screenshot involved, then its pretty much useless, even if the nickname resembles the user somewhat. Its important all users know this when collecting evidence to prevent scam.
I like this idea and have added a new section under 'Good Screenshot Evidence'. Please let me know what you think