I'm going to stalk strangers on Facebook just for fun.
Why would you want to stalk strangers on Facebook just for fun?
It's a fun way to kill some time.
It's unacceptable to stalk people online because it could make them feel uncomfortable or threatened. I think you should look for a different hobby that doesn't harm anyone.
They won't even know I'm stalking them. I'm just looking at their posts.
Stalking people on Facebook won't be very satisfying for you. If you want to have more contact with people you could join a club or a gym to meet new people to hang out with.