Why can't I edit my posts after an hour?

[allingeneral]

The edit button goes away after a set amount of time for all posts because...

Let's say you post something, then you get 13 responses to your original post (OP). A day later, you decide to change your OP, and half of the 13 responses now say things in them that have nothing to do with the new OP and the entire thread is confused,

So, if your post is in the Marketplace (selling a firearm or other item) and you want to edit the price or add pictures, then just do so by replying to your post with the updated information.

Otherwise, if you want to edit something after the post has had a chance to settle, your best bet is to contact a moderator.