What are these bots used for?

[itaicool]

So I was browsing the forums when I stumbled upon a group called bots consisting all bots accounts, the only bot whose purpose I know from this group is "Trial Bot" which I know can send reports against your accounts or post user reports when they appeal but the other bots on this group all have 0 posts and I can't find anywhere information about their purpose so I was just curious what they are used for.

I understand if this information is not available to the general public but I thought trying to ask wouldn't hurt, the bots in questions are:

"TrialBot2" memberlist.php?mode=viewprofile&un=TrialBot2
"MaeveBOT" memberlist.php?mode=viewprofile&un=MaeveBOT
"AstrisBot" memberlist.php?mode=viewprofile&un=AstrisBot
"GaelanBot" memberlist.php?mode=viewprofile&un=GaelanBot
and "GeniusBot" memberlist.php?mode=viewprofile&un=GeniusBot

[Jerme]

GaelanBot is likely the bot user for the former bot called "ToS Bot", "TrialBot2" is the bot behind TurdPile'S TrialBot, AstrisBot for a dead bot called Astris, I don't know the other two's sources.