[[!comment format=mdwn
 username="anarcat"
 avatar="http://cdn.libravatar.org/avatar/4ad594c1e13211c1ad9edb81ce5110b7"
 subject="merge with scalability?"
 date="2017-04-24T14:10:29Z"
 content="""
shouldn't this tip be merged into the [[scalability]] page directly?
"""]]