I'm the kind of person who enjoys Youtube videos, but there is one dark,hellish area of Youtube you do not want to visit:the comment section.Common mistakes of this internet hell include:

1.U=You Ur=Your
2.Lowercase first letter of a sentence.
3.To,too,and two are always abused...always.
4.Your and You're are also the same,and then you get a fake "Grammar Nazi" that corrects you on using one when it was correct in the first place.
5.Yh=Yeah...HOW?!You literally just scooped two letters out of the word!Are you that lazy?
6.Their,there,and they're are also abused
7.Thru=Through
8.Hole=Whole

Now before I get people going after me let me justify myself.I am a person just like all of you.I make mistakes like these sometimes too.Sometimes I'll even do some of these things on purpose if I need to send a message to someone in a hurry.My pet peev is when people do things like these constantly.