Have you ever seen a purple or orange drop from a mob?

I would go with the majority here. 1675, never had a purple or orange from anything besides a lockbox or vendor. (quest rewards don't count, IMO). I didn't start getting Orange drops until after EGO 500- the exception was my very first, which came from the lockbox you get for entering Arkfall Codes (got an orange EGO 50 VBI HP-5 Wolverine, day one).

If they do drop from mobs, it's about as rare as a double-struck Denver D quarter.

That being said, I have every reason to doubt they drop from mobs. There are, after all, other things the community team has told us that we know to be false: Assassin, Rolling Thunder, etc. Synergy types... those are in-game where again, exactly? Oh, that's right- they're not.

At this point, information released to us I take with a grain of salt, because the validity of previous statements made is questionable at best.

I think we need to start a petition to the devs or dev at trion to either prove that the missing synergy mods, and mobs can drop purple and higher or increase the drop rates from 0%. I'd do it but way to lazy

I can't remember ever seeing a purple drop, and I sure as hell have never had an orange.