Fuzzy, I agree with WastingAparagus, putting oneself out there by posting is scary for a lot of folks. I tend to post to forums here that don't need me to expose myself very much.
How I respond to negative replies depends on my overall emotional state at the time. If I am feeling fragile or vulnerable negative stuff can knock me off my pegs. I recently withdrew from a thread because it was triggering old stuff for me. Other days I'm able to let the negative stuff roll off.
Many years ago, at a couple of other sites I had trolls target me. They had me convinced they knew where I lived IRL. I was scared spitless.
I'm going to give a shout out to DocJohn and the mods here for keeping PC/MSF safe.