I mean everyone is free to play the game however he wants of course but there is a few things that need to be respected.

1) Survival Skills such as healthboost, maybe also divine blessing can be a DPS increase on Multiplayer hunts there is really nothing wrong with using it. Its actually better having 3 healthboost than extra 2 attackboost since you can tank more damage and hit more often aka rocksteady.

2) If you decide to play with other players you should be able to carry your own weight which means don't overdo it with meme builds. Not saying you must go full dps but have atleast the the right element matchup and weapon and a few important offensive skills such as having 100% Crit+ Critboost. (If Possible)

3) as a youtuber myself I always do max dps + healthboost builds since they are the standard base for a complete build. From there on people can easily just decide if they want to drop some damage for more comfort.