Off the top of my head I'd guess two or three of those folks were genuinely interested in finding out something useful, and that the others were probing to find a point or two to attack and provoke me.
I think I've gotten better about discerning intent; I may have improved a little bit when it comes to responding, too.
-- --
I don't have any authority in any church; authority comes from God ... so my opinion doesn't matter.
God didn't (and will never) give me the command to decide what is sinful and what is not: he's already plainly covered "What's sinful?" in scripture ... and doesn't need any help or input from me to make up his mind.
My pastor preaches straight from God's word; it's hard to be any clearer than that.