system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek: TNG] Are there any rules that would specifically prohibit a Q from joining Starfleet?

Suppose a far less mischievous Q (not the one constantly pestering Picard) approached Starfleet and wanted to join. He's willing to go through the application process, enroll in the academy, and to take orders from superior officers. Do any rules specifically prevent this?

Second question: If nothing, would Starfleet quickly craft some rules to impose on Q? It's obvious he'd be able to easily snap his fingers and gain instant acceptance into the academy, pass all his courses with perfect grades, and upon his first assignment, tell his captain that he can take the ship into any region of the galaxy (universe?) his captain wants with guaranteed safety. Would a Q in Starfleet be told he's not allowed to do any of that, and in fact, has to handicap himself?
gpt
Riker was invited into the continuum so there is precedent for this.

There is also the matter of Amanda's parents.  They lived out a mortal life.

So, as long as the Q obeyed the rules, it would be allowed.

Also, looking at Data and Bashere shows what happens when objectively better people join.  Bashere is more or less Khan level intellect but it never went to his head.