I am just curious. I don't care one way or the other but I have one friend on Facebook who likes all her own posts and pictures. It can be as soon as she posts, minutes later or hours later. I figure the hours later is to bump it up to the top of the feed. I have done so accidently on occasion when trying to like someone else's comment. She does it for every one though. So it made me wonder why? LOL
(Disclaimer, I am sure this post has been done before but I missed it).