I guess, if you feel like it.
I think the primary thing is "views" and every time a page loads on someone's computer and these are in the sigs it registers a "view". So just having them there does enough I think.
I think clicking helps, but too much clicking can also hurt. I really have no idea.
I have named two of them but am at a loss for the other two. Or have I named three. I cannot remember. It really is a pretty stupid thing, but for some reason I appear to be addicted. It is kinda like crack.