I don't know if it need not be possible, but I'm pretty sure it ain't gonna be anytime soon.  This issue has been a thorny one for a long time now, and I've complained about it myself if I remember correctly (I would go back and search for a reference to said complaining, but you know....the search function here sucks, and I've never used the external workarounds). 

Damn good thing I don't search for much in general and also that the member search works just fine.  That I do tend to use a lot.