Is it, though? I would say no. To recap: I said that I find Critical Role off-putting. Darjr said "it might be a good thing for all of us" if I didn't play D&D (although who this "us" is, is not clear).
These two things are not alike. As far as I know, "Darjr" is not the embodiment or avatar of Critical Role, therefore by my saying that I find Critical Role off-putting, I am not insulting Darjr. Now Darjr may feel offense if he A) likes Critical Role, and B) identifies with Critical Role to the degree that he would take offense (which I would consider over-identification). But that was not my intention (to offend darjr), and in the end whether or not he feels offended is entirely up to him.
On the other hand, by Darjr saying that he and others would be better off if I didn't play D&D, he was insulting me, as a person - or at least the "Mercurius" avatar I play on this message board. Now for full disclosure, I am not offended by Darjr's statement as I realize he is not speaking about who I actually am, merely his projection of me as the name "Mercurius" as it appears in his consciousness field. So no big deal, really. But I would suggest the same of him: why take offense of me finding Critical Role off-putting to the degree that he (you,
@darjr ) feels the need to insult someone he doesn't know? Especially when I did not insult him?