I call them out.

"Use some cooldowns please so we can clear faster." if they pull wall to wall and expect me to blast through 6 lustrates and aldo shields, I'll call them out. Not in a dickbagish way through, I'll be nice the first time. The next time you're just being annoying and lazy.

I try to play every class so I know how each class fundamentally works regarding their personal healing / abilities.

Small example : I won't heal a dragoon unless they are under 75% cause I know they have Bloodbath and second wind, so usually their full rotation would give back around 10-14k hp [I also know their icons / rotations so I can deduce if they need a little help or not]

Also if you use superbolide when you're at half health you deserve what you get. God that skill is a burning bag of ass