See also: meta.math.stackexchange.com/questions/6848/… — Martin Sleziak 13 hours ago

@MartinSleziak an answer in the linked to post is not up to date (in that the practice of not awarding new badges in case there are "excess" badges got discontinued long ago). I am not sure what is the best course of action. — quid 12 hours ago

@quid If my answer needs updating, feel free to edit it. (It is CW anyway.) If the other answer needs updating, I'd suggest leaving a comment there. (If possible, with some reference to meta.SE.) Since the answerer is still active on math.SE, I guess they might update the answer or at least add some warning, that the answer is outdated with link to some relevant more recent post(s). — Martin Sleziak 10 hours ago

The remark about the "next badge" is no longer true see meta.stackexchange.com/questions/81013/… or the relevant section of meta.stackexchange.com/questions/17853/how-do-badges-work Somewhat separately it may make sense to do some duping or merging with meta.math.stackexchange.com/questions/21815/… Or maybe one keeps them separate for the different emphasis on usual vs tag. — quid 9 hours ago