Deleting comments in communities

[kinvore]

Title
Deleting comments in communities

Short, concise description of the idea
Have the ability to keep members from deleting comments of others in communities.

Full description of the idea
As a moderator of a fairly active political discussion community, at times I've had to threaten bans and the like for people deleting the comments of others. Can we (or do we) have a setting that makes it impossible for non-admin members to delete someone else's comments?
An ordered list of benefits

• Will keep people from censoring others, leave that to the mods. ;)

An ordered list of problems/issues involved

• If someone trolls a thread then the community would have to wait until an admin addresses the offending comment.