At that time I was reading up on the post/comments here but now I don't remember if there was any consensus as to the legitimacy of those posts. And maybe it's not possible to determine 100% whether it was or wasn't the Q team who posted.
The posts started on Jun 24, the date Roe v. Wade was overturned. And I guess at that time someone noticed 11.3 in some Roe v. Wade legal documents. So if 11.3 is a reference to Roe v. Wade then most likely no one would have associated 11.3 with Roe v. Wade without those Q posts showing up.
The writing style is entirely different. For instance, hey guys look what a friend of mine did!
Also the Q that is suspected to be a fake did not have the correct trip code.
However this person was allowed to set up their own truth social account with a single letter of the alphabet as the account name, which apparently is against the rules. I don't know what kind of fuckery is that.
Different encodings have a bunch of characters that appear to be blank when converted to UTF-8. Not saying that’s the case here, but that does make it plausible.