He's not talking about scripture but how one goes about presenting himself for the sake of his beliefs. It's a huge difference.
To answer the question, I think that it depends on the relationship with that person. If the person is being obnoxious in a group of close friends for a laugh then it's not wicked. If the person is on a message board and wants to irritate others on purpose, then he's not being loving to his neighbor and that should be called out and motivated to change.
I think some choose to FEEL "offended" instead of responding to the point raised. Some appear to have a kind of "persecution complex" and that "you anti!" is a knee-jerk defense approach so that they FEEL they don't NEED to respond to the POINT.
Now yes, there are those "fundamentalist" in ALL "camps" and they can be "obnoxious" The "I'M right cuz I'M right so I'M right when I'M claiming I'M right" ("I" here can be a person, church, denomination, cult - whoever/whatever is making the claim for self exclusively, say in the Catechism of self). They just define truth/right with whatever SELF (ditto definition before) says, feels, claims. And thus everyone else is... well.... therefore wrong, apostate, ignorant, dangerous, heretical, divisive, stupid and above all, "anti" self. Yup, it's obnoxious. After posting WAY too much at several interfaith "discussion" forums since I was 10 years old, I've learned there ain't a thing you can do about it - but note it. I suspect such have a strong, strong felt NEED for this kind of egotistical, individualistic, circular "shell" of unaccountability (and I "get" that) but it DOES make discussion pretty hard and very frustrating, and THEY claim, it's ALWAYS everyone else' fault.
My half cent.
- Josiah