Ive never understood why people criticize others work, i believe that anyone who posts a MOC should be encourged.
It takes alot for someone new to have the guts to post it and it must hurt like hell to have someone else tear it apart, only with encouregment and helpful hints will the poster reach his/her full potential.
Nobodys MOCs are better than anyone elses, remember what someone might hate someone else will love.
I for one look forward to seeing anyones MOC's.