“It’s hard to call bullshit if other people back up your claims, directly or indirectly, through active engagement with your profile.”
It’s not hard. Watch: bullshit. I’ve had people I don’t even KNOW “endorse” me for skills I don’t have, presumably hoping I’ll do the same for them. I don’t trust any such list I see on LinkedIn. If this is the view of an “expert,” it reinforces my view of the whole system: it’s full of people telling us how valuable it is, but the reality is … meh.