It's not that you're not allowed to say this, it's just that it sounds a little different when it's over then internet. For instance, try saying this:
screw u Yeong
out loud in a few different ways. Try and say it as if you were kidding, as if you really meant it, and also try and say it in a monotone. If you can see how there's no way to tell which one you meant, then you can understand the varying responses from people. As a general rule, the poster is responsible for how the message is interpreted, including tone, expression, and cadence. Good luck with expressing yourself in the future.
