when your online no one ever does, because its quicker not to,
Yes, it's quicker for most people to not type punctuation, but quicker by a fraction of a second. This is a forum, which means you have all the time in the world to type, edit, and submit your posts. There's no race. Take your time and check your posts before you submit them and everyone will appreciate it.
If you're a non-native speaker of English, simply point this out and of course people will not be so harsh in judging your grammar. However, there is a clear difference between someone who isn't aware of a mistake and someone who simply does not care. As others have said, it's respectful to the other forum-goers to make an effort to type properly.
Here's a handy reference for you:
you're = you are: "You're doing it wrong."
your = possessive: "Please check your posts before submitting them."
"," is not the same as "."
lol = "Laughing out loud." It is not punctuation or a filler. If you're not actually doing laughing out loud, it's pointless to say that you are. If you are laughing out loud at your own writing (as in, not in response to something another person has posted), there's no need to tell us how funny you think you are.
If you can keep a few rules like this, you're welcome here. On the topic of the actual thread, no, I don't play Runecraft. I tried it for about 20 minutes before deciding it was simply everything I hate about online games with all of the fun stuff stripped away, so I left pretty quick.