This may be a basic question but I was wondering if having really weak players in a syndicate is actually harmful?

We're in a syndicate with 25/36 players, so around 11 spots open and we get a lot of requests from really low level players, maybe level 10 or below with terrible stats.

My question is not really whether having these players is useless, its about whether its worse than useless? Sure, they can be easy targets during the war but opponents scoring points doesn't really affect ones own positioning.

What do other syndicates do? Do you reject low level requests even if there's be no-one else to fill those spots?