[saurik]

This isn't an "issue": it is a "discussion"; people are using his issue tracking system as a discussion forum for ideas. This is the kind of thing that for most projects would happen exactly as he describes: on a mailing list or on IRC, not inside of the issue tracker. I feel like claiming he needs to "level up" is kind of harsh: I'd argue what he's doing right here actually is "leveling up"... as a moderator, directing people to the right place to have different kinds of interactions.

[mh-]

I don't think the parent commenter intended the 'level up' to be disparaging at all.

It seems you interpreted it as something like 'up his game', but I believe the commenter meant something like:

He needs to recognize that may no longer be a good use of his time; that he might need to be 'above' that.