I’ve added basic support for communities. Please report issues if you see something stopped working. I’m trying not to cripple the site with too many features, so I’ll consider adding more only if/when the need arise.
I hope this will encourage more people to join. If you know somebody who would enjoy it here, please invite them :) I was planning to shutdown freepost at the end of the year, but if there is enough interest (ie. if more people use it) I will keep it going.