DBM is crap. I'm sorry if this sounds harsh, but I'm just being honest and straight.

If a game really needs DBM that means that that game is not well designed, period, and it should be asked for it to be improved instead of getting crappy add-ons. And if the game doesn't need it, then why do you want to make it trivial?

Also, you have to keep in mind that console users can't use them. And you should know already that getting such add-ons would only create segregation between both platforms. That's the reality.

So I'll say this again: beyond more UI customization (that should be implemented by SE anyway), add-ons are NOT necessary here. You DON'T need dps meters, you DON'T need DBM, and you DON'T need many other things (heal bot, etc.). Now, I know that they're just tools and that some of them are useful when properly used, but from my experience they give way more headaches than any positives that they could bring.

So, I'm pretty happy with not having add-ons here.