Per [[m:Global bans]], I am notifying the project of this proposal. Everyone is welcome to go and voice their opinion of the proposal and about the user in general.
Topic on Project:Village Pump
Neither has the named user (Tobias Conradi), nor has the sock puppet (Helmut_Schönberg) contributed to mediawiki.org, so there shouldn't be a need for this notification :)
See Special:Contributions/Tobias Conradi~mediawikiwiki, which is blocked here.
Sorry, haven't seen, that the username is given to another user on mediawiki.org :) Thanks for linking to the correct one!