Well, the ones on the K3/K4NT/KT/PW1/PW2 are not much to look at either... I agree the simple answer is to just say "might not work on all devices".
I'm not sure I would ever choose to follow such links if they were there, no matter what I was reading on, though.
Generally I read to read, not to twitter on about it (what an absolutely apropos name, I've always thought

).