Post 3 is fine as it's good advice from a F-Mod. I see nothing wrong with said advice as I and others do the same thing for Security. Never had an issue.
Post 7 is also fine as it's from a Community Helper who have guidelines and the knowledge to help the OP understand His/Her options. Advice left is good advice. It may also help you out a little too in understanding Authentication of an account.
Also please remember F-Mods have Guidelines. Please also remember Community Helpers have Guidelines. None were breached within the 2 posts and no misimformation was give.
As for your last point I'm not in a position to answer that. As I have no idea what your on about. No need to inform me as I think this issues you have reported have been resolved.
Thank you for making a thread in the Community Led Account Help forum as that is the correct forum for inquiries like yours. This thread is to help with Forum issues rather than in-game issues.
(You do have a reply on your Account Help thread.)