I agree that's quite a lot of money. I'm not sure what if any the cap should be. I guess my attitude is that if they are bringing in so much money, and everyone working there is getting a fair cut... then power to them? I don't donate either, though I've been using Signal since before it was called that. I remember when they first introduced calling as a companion app called Red Phone.

I'll agree it's high, but then you have absolutely no idea what they do or have to put up with. Non profits should put the money they make above and beyond their expenses back into their employees, at all levels, not just the top. If you can't beat em, join em!