It doesn't bother me in the slightest.
I have friends who do this all the time with about twenty kisses afterwards. I also have those who do all kissy huggy stuff with their partners on Facebook.
I don't mind if they want to show off their kids / partner it shows they are proud of them. As long as they spend time with them and make them feel special too, but I can't moderate that.
I sometimes post how proud I am if DD has had an injection and not made a fuss because I truly am and a lot of my relatives would like to know this too. I am not harming anyone by doing this.
I sometimes comment about I can't believe she's growing so quick too. If people don't like it they can always delete me those miserable gits I would gladly have removed from my Facebook, especially if they send me game requests all the time.