and even a highly talented and technical musician would admit that attending a performance with other people is more interesting than doing theory homework, even if they have a very clever theory teacher who makes the lessons into little stories

I am struck by the inclusion of the seemingly unnecessary phrase "with other people", which suggests that your real interest is social in nature. And sure enough, you confirm this later in the comment:

That's a time commitment it's difficult to justify if I'm to make it before being allowed to discuss the ideas with human beings in the current blog.

and

[current posts are] simply more enjoyable, because it's interactive

It seems like an important point, and another argument in favor of additional (sub)forums. About that, I'm not sure what I think yet.

Incidentally, against the notion that attending performances is the most enjoyable part of the musical experience, here is Milton Babbitt on the subject:

"I can't believe that people really prefer to go to the concert hall under intellectually trying, socially trying, physically trying conditions, unable to repeat something they have missed, when they can sit at home under the most comfortable and stimulating circumstances and hear it as they want to hear it. I can't imagine what would happen to literature today if one were obliged to congregate in an unpleasant hall and read novels projected on a screen.