I agree with Adrian. I see nothing wrong with letting "conversate" become a word, whether language purists accept it or not. It may very well die out in 20 years, or it could become standard.

I mean, there are plenty of back-formations in standard English nowadays. In America, for example, people tend to use "orient" for the verbal counterpart of "orientation." Yet, in Britain and the Commonwealths, people often use the back-formation "orientate." There's no reason for them to do this, since "orient" already existed to begin with, but "orientate" exists nonetheless. And it's now so common, it's unremarkable.

I hope this helps.