Neither of those tanks should be doing either of those things.

On the other hand, you can make your own bad habits if you really miss doing those on the other tanks:

Set Flash as a crossclass skill. (This one's actually useful if you find yourself in a bad party and want to be kicked)
Party line edgelord macros. (Bonus points if you make one for Dark Arts)
Tell people you don't use Darkside because you find it "annoying". (I've seen this)

I'm sure you can think of more as well. If you've been playing this game long enough at all, you'll know it's really not hard to be bad.