Do share, why don't you use them? And I'd rather have more specific reason than "I don't like them" (which is a valid reason ofcourse), because I'm curious why don't you like them.
Thank you!
EDIT: Typo, and thank you for feedback. :p
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Let's see: They are useless against nearly every strike boss since you can't get that close very often. Who wants to stand in front of Valus or Phogoth with a shotgun?! They are dangerous against higher end raid enemies like knights, and useless since you'll already be dead against ogres. Oh, and as stated already, burns, lightswitch, and angry on nightfalls make them useless.