How do you offer constructive criticism/advice to players that need it?
Last night I attempted my resil 19 AA multiple times. The final attempt we had a bear tank who, on the surface, was doing well. Had a route, kited the first pull adequately, chained the ravager correctly, focused and kicked his targets, and positioned the bosses well. He had a death where he got jumped on simultaneously by 3 foragers, not ideal, but we managed to not wipe and he got bres'd.
The main issue was that his damage was very bad. He ended the key with 60k dps overall, a 0 parse for key level. And looking at his logs, this is a consistent issue.
After the key I sent him a message, "Hey man, you tanked that key really well, but your damage abnormally low, have you looked into any resources or guides that could help?"
I immediately got ignored, which I get, but I was trying to help the guy out.
What ways have you found to offer constructive criticism to players that need it and are receptive to it?