What people have said here. A lot of people are ESL, so don't insult their poor English.

it's not that big of a deal

this

12 + 8

Who cares? Were not in school. Does it make you feel better about yourself to be able to correct people?

I don't know what's more annoying; music snobs or grammar nazi's.

Your the worse for trying to drag there grammar.

It doesn't really matter, I agree. Just teasing, because I cringe a little sometimes.

Oh. Sorry. You're right. I should have said that the maturity of the members is around 12.

I generally see non-native speakers make those mistakes less often than native speakers.

Sis, did you catch that shade?

I think it's actually better here than it is among the general populace. I don't see nearly as many your/you're, there/their/they're, to/too, and so on errors as I do when I venture into Facebook or Twitter.

Who cares if it was understandable

Not true, common sense will tell you that "you are" and "your" are completely different things. The same can be said about "their", "they are" and "there". And if you happen to have an issue with it, use the formal style and drop contractions.

Ikr? It's frustrating sometimes.