In September 2015, Walsh admitted editing his own Wikipedia entry, claiming it had been edited by "a person from the gay lobby groups". He said that he had removed "certain erroneous comments" but did not say which edits he made or what was erroneous. T.J. McIntyre, a law lecturer at University College Dublin drew attention to edits made from an IP address belonging to the Oireachtas. Edits made from that address included removal of controversial comments made by the former senator about gay people and the Marriage Equality referendum.