If google does not consider meta keywprds.... does that make any sense that i still spend a lot of time considering meta keywords???
No, sorry. It doesn't make sense to spend any time on your meta keywords. No one really bothers with them anymore as the search engines no longer use them (at least that's true with the big ones!)
but it doesn't hurt if you put them up anyway right? because I'll been adding them in many sites... is that bad now?
They don't use the meta keyword tag but it certainly won't hurt to have them present. Also, your time won't be wasted because you'll have your phrases for the other factors that the engine do still consider.