I think trying to project motives onto a posters question, and then closing it because it may be self-promoting, is flawed. The post is far from an egregious case, and honestly, even if it is a thinly veiled bit of self promotion, it involves the following chain of logic:
- Someone searching StackExchange for statistical help will somehow miss CrossValidated and come here instead.
- Having failed to find the proper StackExchange site, rather than just asking their question (and getting it migrated or closed), they'll search for, I don't know, "Statistics Help".
- They'll find Peter's question.
- They'll read Peter's profile.
- They click on his link, contact him, and this ends with a doubtlessly lucrative consulting contract...
That's a chain of events that I'm pretty sure will never actually happen.
If instead we read this post as a legitimate question, I think it's a much more reasonable one. Connecting people who need statistical expertise with the people who have it is a problem for people in the same university (I know this from experience). Working outside that system strikes me as harder, and something worthy of discussion.