I can't take it anymore. I'm making this thread to help you,
. You might hate me now, but someday you'll thank me.
Let's start with what you wrote in the sexbox:
"We should have an award thread. Pick like funniest poster, and have a ton of other
catagory's"
This is a plural/apostrophe issue. Let me explain.
Apostrophes are used for contractions (we won't deal with contractions right now since that's not how you misused it in this example) and possessives. Think of a possessive as claiming something as a possession:
That is Tim's book.
I used an apostrophe because the book belongs to Tim. Here is another example:
Japan's coastal region suffered heavy losses.
I used an apostrophe because the coastal region belongs to Japan.
The reason why your usage was incorrect is because the "category's" don't belong to anyone. Therefore, to make it plural (more than one) it would be
categories
Other examples of ies endings: skies, spies, cries
Feel free to ask any questions, and don't listen to the haters.