[ask] What're rom tags means?

I don't know what are rom tags means..
Like this :Bahamut, M5,M6, Xenophobia, Legacy, JunkRat, etc..What're those means?

Those are the name of the group that dump the game if I'm not mistaken.

look here: https://www.romulation.org/forum/index.php?topic=1359.0

@loonylion : i saw it yesterday, and i didn't see the other tags, like 'bahamut, junkrat'..
Please help..

Those are the release groups.