To me it looks like a wasteland of recruiters. I used to think it was neat when some recruiter would contact me about a job, but now I realize they are just spamming everyone with (your framework here) listed in their skills. The over-saturation of recruiters, connections with everyone you even slightly know, and people endorsing you for skills they don't know you have has made it all meaningless.
Not really. I've been in that situation, and spammy recruiters are just looking at "Oh, he's got $buzzword in his profile, and $company needs $buzzword!" If $buzzword = bash, that's not really useful. It's used everywhere, and isn't really an exclusive skillset. They don't pay attention to company culture, pay, or even location.
Obviously YMMV, but IME, they pretty much just throw everything against the wall, to see what sticks.