And if presented with the same scenario again, I'd probably do it again, though probably with some chagrin.
But my point is, $200 isn't a ton but it's not nothing, and if you're already potentially going to be fucked, the probability of $200 being in the "not nothing" category is probably higher. And if it wasn't something a few other people were stuck with too, it'd have been quite a bit more. (Hard to figure the exact bill because one of us decided to talk to him for a lot longer to check on some specific things, so we just venmo'd him for what he thought our % of it was).
So - I guess what I mean is - even for fairly privileged people, "just check with a lawyer" is not something you "just" do.
And I find it super annoying that assholes (like LinkedIn for OP, and the person who was forcing me to sign the contract) can just write shit down and throw it at you and then you're supposed to spend $500+ to check them on their bullshit or you're the one in hot water.
(Though, that said, OP's example isn't perfect because using the LI logo probably should've been a "hmm wait a sec" moment for him. But also if all LI emailed him about was "stop using the logo" then he similarly probably wouldn't be feeling the need to seek legal counsel).