Sorry buddy dont get your argument. You been here for so long on a visit visa provided by your wife and did not know if you can or cannot get sponsored by her. Now that shows that you have not done your reserch. If your wife could sponsor you on your visit visa then I am sure she can sponsor you, as long as she meets the immigration requirements.

I have a few friends who are sponsored by their wife and was going to share with you but I guess you non-politeness made me rethink again!

Have a nice day and hope you get the answer your looking for!