The badges page for [Announcer](http://superuser.com/help/badges/64/announcer), [Booster](http://superuser.com/help/badges/65/booster) and [Publicist](http://superuser.com/help/badges/66) do not mention that you cannot get both the badges for the same shared it.


The badges used to [work differently][1] when first introduced(there were timelimit/IP limit changes since then) but I don't remember any changes which mention that the same question cannot multiple badges of the class you mention. 


  [1]: http://meta.stackexchange.com/posts/188733/revisions