I'm curious... pretend for a second you're completely abyssea-level on your gear. Full AF3+2, no empy weapon, but some level 99 magian weapons at your disposal. Would you rather:
1. have a group of 17 people who already have full delve boss gear roflstomp everything in delve for you so you get full delve gear as well, but are incapable of providing any help at all until you attain said gear.
2. find a group of people in the same boat as you and work together to more slowly upgrade gear (first skirmish, then start some delve runs and NM kills with a few pickup members to fill the gaps).
If you prefer number 1, perhaps I should consider convincing my friends to go back and help other players once we finally start managing boss kills reliably.