The inherent problem is, endgame is horrible by insane grind walls(Soul Badges for example.) Not many players who are already at max want to spend hr's and hr's helping newer players catch up because there isn't much insentive to do it. Unrealistic dungeon ratings. Blade and Soul has one of the most confusing rating systems of any mmo out there. Upscaling dungeons further locks out new players. Being told to Celetial Basin can only be said so many times. yet Celetial Basin offers very little too the player and after a few hr's gets mundane and boring.
Daily's for example now only seem to show most endgame raids. That u can't find a party for if u aren't already atleast Raven 3+. and going from Baleful to Raven requires materials from a Raid that you have to pay for Carry as u don't meet the minimum for Shouts or get kicked because of a gear check.
My biggest pet peev is still Floor 15 Naksun, absolutely horrible mechanics.
The only thing that really draws new players into the game is the main story, After that they have to decide whether they want to put up with the grinds since getting into dungeons is somewhat hard to do, upgrading becomes a chore.
Why this game survives on 2 servers vs. 10 servers.
The game is already broken by design, we continue to play it because we fell in love with the visuals, the story, the pve, the pvp.
It really is a love/hate relationship.