First off, it's "please," not "pls." Putting a smiling emoticon means you are happy you request help which is actually irrelevant (but also subjective).

How is any of this relevant?

Pls is an abbreviation if I want to create a thread "please help with this lol, it's a mess"

Would I put "please help with this laugh out loud, it's a mess?" You're correct, of course I wouldn't.