yekke2–
I apologize for my overly harsh personal criticism.
Let me try to rephrase what I’m trying to say.
There’s nothing wrong with looking up various meforshim and poskim to try to support a svoro of yours.
What is wrong is deriving your own heter based on that for action(s) that many (if not most) rabonim and poskim hold are problematic / assur for various reasons. At the very least, one is obligated to ask a shailo to their rov about the action in question.
Once that’s done, even if you’ve gotten the OK you must still be careful not to publicly announce that “it’s OK and completely mutar” – you must be very careful to explain that, although your posek may be matir it, there are many who aren’t, and one must be very cautious about the issue (needless to say, gnaiva is serious and Rav Belsky and [lbclc] Rav Moshe aren’t to be trifled with).
A less contentious example of this is that one who follows Rav Belsky’s psak that drinking water in NYC needn’t be filtered shouldn’t state in a public forum that “it’s no problem”, rather “per my posek, it isn’t a problem, but you should ask your rov”.
There are also certain issues/halochos that should not be discussed on a public forum for obvious reasons (v’hamavin yovin).