As to Roman Catholicism, MIND YOUR OWN BUSINESS. It isn't as though any opinion you might have in your various errors could possibly be relevant or of interest to any adequately catechized Catholic. As you say, it is a public forum and, if I regard your opinions (with plenty of justification) as ignorant attacks upon Catholicism, you will hear the unstinting truth from me and from other Catholics. No one but no one authorized the impertinent you to preach at Catholics and expect to be heard as though you had some argument to offer. You don't.
With the absolute lack of manners you display, it seems probable that you raised yourself as a feral child and have not recovered from the experience.
Your dignity, if it is ever to emerge, requires privacy. Go to your room.
Since I absolutely do not care a feather or a fig as to your demonstrably worthless opinion, I do not require privacy but simply remind you that Catholic business is none of your business.
As you are entitled to put your ignorance on display, the targets of your infernal preachiness are entitled to tell you to pound sand.
Pound sand!
What kind of a self-important boor thinks he has the right to tell others on a public forum to "MYOB"?
If you want private communication, try email. If you don't want to see what others are saying, ignore them. It works for some 99% of us.