There is a considerable spam posts income suddenly in SFSE it seems. Well, not sure whether they are really spams or not. They do have Japanese or Korean like letters all over the post. Anyone noticed?
Generally spam isn't too much of a problem here. If you see something you think is spam then flag it and it'll be deleted soon enough, and frankly it rarely makes it as far as the moderators in my experience anyway. This community is fast when it comes to shutting things down that are out of place.