Yea I agree it seems like (for my own team anyways), one group channel would work a lot better than a per person channel for everyone. I think some people may feel more likely to post, especially work related topics, in a group channel rather than starting solo threads in their own "ramblings" channel. One channel is also easier and "less work" to look through than n number of channels. This is very subjective though I guess, so I could be wrong.