Yes, I see what you mean now. In the absense of "designing" learning pathways with integration of peer-support, independant study online can be a lonely experience.
In the OERu model, we incoporate microblog posts and something called WENotes which provides a 24/7 stream for peers to interact with each other. We've also developed support tutorials to help with technical support.
The idea is that volunteers could help with both content and "how to learn" support using these interaction tools.
We have experiemented with a peer-based question and answer technology (similar to Stack Exchange) in some of our prototype courses where learners could post questions, and anyone could provide answers earning karma points for good answers voted by the community. This worked reasonable OK until the critical mass of main questions were populated on the site, and then it became a read-only resource rather than a community support tool.
I do agree, building a community of OERu mentors could help tremedously, including retired educators, peer-learners, community service initiatives where learners "pay-back" their learning by offering help and support or actually earn credit for providing support etc. I think the challenge is to build the critical mass of volunteers to make this work. It will take time, but I think we could build an amazing global community of support.