Rob wrote:
User:147.72.93.172/147.72.93.199 has for some time been a troublesome presence on the Pittsburgh Tribune-Review article. He has made some valid points, but they are lost amid a torrent of claims of libel, legal threats, and general rudeness. Earlier today he removed a large amount of material from Talk:Pittsburgh Tribune-Review without archiving and replaced it with the words "Edited to allow more space." I reverted and asked him not to do it again on his user talk page. He blanked the entire page this time. I warned him against vandalism and reverted. Another blank, another warning. I blocked at the third blanking of the talk page.
Being involved in a content dispute with 147.72.93.*, in my opinion you should not have blocked him but instead posted on Vandalism_in_progress and let there be no question of conflict of interest or misuse of privileges.