I think that people (or maybe just friends of a person) should be able to post comments directly on other people's 'my stuff' pages. Or maybe there should be a 'comments' page that you can get to from a person's 'my stuff'. In other words, you should be able to post comments to someone about their projects where it is not in a gallery or a project.
There could also be a way to keep those comments private:
They could be only seen by the person they are to, maybe.
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The ScratchR team has explained several times why they are not willing to implement private messages.
They *might* be willing to implement public messages, but the ScratchR site is not intended to be a general chat service, but a place for Scratch programs to be shared.
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