Should I be concerned if somone, especially a guy has liked 10 of my posts in a time span of less than 45 mins?

No You should be happy someone finds you interesting. This site works like that.

I've had somebody stalk my profile and like over 50 posts within 5 minutes. he never messaged me though lol

Why should you be concerned? It's the way this site works.

Nah. It’s their way of supporting you.

if he likes 20. you gotta send bobs..

Do you expect him to reach through the computer and harm you?? Seriously so someone liked something you wrote, why make a big deal out of it??

No. Its like reading a book. You read it then know what its about and dont read it again for awhile.

I dunno. are you posting your long lat locations or something?

she just wants likes.... ok you bait me in like

10 is fine, 11 may need to be checked

Stalkers are our friends.

He just wanna smash

It’s a creeper.

No, I have had this happen and have also done it. I know when I have done it, I am genuinely intrigued by the posts of the person.

No it means he’s checking out your profile

Yes, he could a serial liker wanted by the FBI :-)

I wouldn't worry too much

you have a stalker!

He wants those digits!

Not particularly

Ar they dangerous?

Run!!!!!!!

No

No

lol, I've had it happen to me as well.
I got back from lunch once and I had 20+ notifications 😂