Don't know if you used that spelling of principal ironically, but it made me chuckle.  Anyway, I don't know if anyone was slamming you for trying to connect accounts via writing styles, but that method is unscientific at best.  Sometimes there are little word quirks that seem to give people away (like mdayonliner, for example) but you can't really prove anything--at least not like you could with blockchain evidence.

At this point I'm wondering why Quickseller would even start up a new account.  It's very hard to rank up from scratch, and I don't even think QS feels the need for an account with clean feedback.  I'm not saying Primenumber7 isn't his alt, but it does make me wonder what his motivation would be if it is his account.