Unfortunately there are players who aren't interested in being courteous to others but SE's intent for the hunt has always been kill on sight. If SE responds when the subject comes up, they repeat that hunts are kill on sight and they have no plans to change that.

With this being patch week and players wanting Causality for their relics, you're going to have a lot of early pulls because players want to be able to get to the next spawn as fast as possible. There's not much that can be done about it.

Encourage the community not to attack immediately if something is pulled early or to get one hit in then stop attacking. That will buy a little time for those still on the way.

If you're using the Faloop third party app, manually release immediately once the spawn location is confirmed. The delayed release only hurts those in the community who rely solely on Faloop and aren't also using one of the other third party tools.

Things will be better about a month from now when those who usually don't hunt have their relics completed and go back to other content.

By the way, it's really silly to refer to just the early puller as a leech when 95% of those who show up are leeching and never assist with relays let alone spawns. Either they all are or none are.