This isn't a smart move at all. I can empathize with his "pain"; and it certainly leaves a bad taste to let this just slide straight off. But the problem is I

This isn't a smart move at all. I can empathize with his "pain"; and it certainly leaves a bad taste to let this just slide straight off. But the problem is I think that there are considerations: such as the fact it was ripped off by a Chinese contractor (which as has already been discussed at length, is something not uncommon), the fact that Microsoft obviously screwed up - but dont appear to have done this maliciously. If anything I would approach it with discussions to license to code; MS now have a user base in a market that Plurk is banned. That is commercially viable for both parties.