so i've been here for quite a while, but i don't even know how to see other peoples replays from the forum
How can i see other peoples replays? And how can i share my own replay?

There is an entire sub forum dedicated to replays
http://forum.toribash.com/forumdisplay.php?f=10

yes i do know that there is a whole thread about that, but how can i put my replays into the forums
and how can i play other peoples replays?

You can post your replays via the Attachments manager

And you have to drag the downloaded Replay for someone else into your Toribash/Replays folder , then you can go to it ingame

oooh ok thx, closing