Damn, this sucks man. I noticed your absence the other day and then became aware of the ban. It's ridiculous it went to these lengths. The deletion I could see, but being banned... that baffles me. I'm pretty sure they removed your gallery due to copyrights. I've had pieces removed, but never any other notifications. Not having the copyrights is the most common, and abused, way to remove for them to remove art they don't like and/or understand. It's a very hypocritical place.
You shouldn't stop morphing unless your own desire calls for it. Your work is some of the clearest, most realistic, and overall preferred type of PMs I've ever seen. You've done some incredible work, anyone who admires muscular women already knows that, heh.
I hope there is someway to stay under the radar so this doesn't happen again. I'm not sure of any other art sites, but if push comes to shove you can always go old school and start a Yahoo Group. Many great artists still have them with filled with masterful work. But I hope things will somehow workout on dA so you can continue to talk to friends, journal sketches, etc.
Either way, defiantly continue to post your artwork to dA because there's not a fucking thing they can do about that

And seriously consider continuing morphing. I know it's discouraging now, but don't let this stop you.