It's all perfectly fine with Hubpages. Half the people on this site are doing that.
Still, I don't know that anyone is going to be interested in seeing a page where all I do is promote myself....it is much better to use a page to promote things you are interested in, and then also promote yourself here and there too.
I don't get much out of mine...but my associated Facebook page is about something other than what I write here. I DO occasionally use it to promote things I write...so long as they are related to the themes of my page.
I'm entirely disillusioned with backlinking much on the web....but when someone backlinks for you, someone you have no clue who they even are...that is what really works for traffic.