Wikipedia's open nature helps it. Several years ago I did a "wiki patrol" for new edits. There is an IRC channel and programs and facilities for this. Most o

Wikipedia's open nature helps it. Several years ago I did a "wiki patrol" for new edits. There is an IRC channel and programs and facilities for this. Most of the cleanup I did was of well-meaning people who did not understand Wikipedia's markup format and the like. Some was vandalism. Lots of people do these "patrols". I would not underestimate Wikipedia's ability to deal with spammers. The open nature of it all helps it.