Removed propositions still visible in the "recent activity" section on the front page

It seems that there is no way I could remove from the "recent activity" on the front page the propositions that were removed, in that case from assemblies. As a user of versioning tools I can understand the logic behind the tracing of every proposition in the history, but I can think of different situations where we would like to simply NOT have a proposition being publicly displayed anymore. If not, trolls, in particular, could easily abuse that "feature".