Tentacles aren't creepy unless you're talking about them in
that way.
But, I have a pet kraken, and am friends with many cephalopod merpeople; they're actually the more efficient and intellectual of the merfolk.
So I resent the thought that they're somehow creepy just because their system of motion and object manipulation is a bit more convenient than most.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)