Hi Gretchen,
I would not consider Peter's posts as an infomercials. Peter is talking to developers, customers and users working with or on Personas. He then carefully compiles all the important content and blogs about it and allows discussions because discussions usually make sense.
However, this post, again triggered by many questions coming in from customers, talks about the roadmap. Peter actually took publicly available content and compiled it so that it is easier to find on SCN. There was a discussion whether to post it or not because every written word about a roadmap usually causes trouble for the author even if it is important content for the readers. So instead of having a meta-discussion about blogging and comments, I think you should be happy for the information Peter shared. I hope that this discussion doesn't discourage Peter (or others) from sharing important information with the community.
Cheers,
Tobias.
