There are many accounts on Osm that are created just for advertising purposes.
For example 1, 2, 3,… Unfortunately there are many others, https://www.google.com/?gws_rd=ssl#q=film+site:/www.openstreetmap.org.
I think all these accounts should be deleted (And can we know the list of admin who have this right).
I normally report spam accounts in #osm-dev in IRC. The admins are active in that channel and spam accounts do get deleted.
@SomeoneElse: Thanks for your reply but I don’t use IRC. A simple search on google shows that this phenomenon seems to be greater than I thought, https://www.google.com/?gws_rd=ssl#q=sex+site:openstreetmap.org/user/ (accounts with links to pornographic sites).