In my experience, the worst thing in gaming is being the odd man out. They probably sit around in discord complaining about you for everything, even while 1 or 2 of them played 100x worse. They also double down with the whiner, and usually worse, player in the group of friends.
People in groups tend to pick on the guy left out, its why I dont want any part of a multi-person group if I have a choice.
The most toxic groups of people tend to be these 3-4 man groups.
Your DPS was probably low. It’s a pretty common dig / joke at someone’s expense to ask for gold when they feel they’ve carried you.
Just don’t worry about it much, do you and if you feel like you wanna work on DPS if that’s the case, do it for you, not for some healer with jokes you can rip off of first page Google.