Haha, I was mostly kidding. I mostly look for people who will be applying to my program so that I can message them and give them information for their personal statements. (IE what their POI is doing right now in terms of research, what the atmosphere is like, etc).
However, later on I'm sure people will be looking in these threads in terms of where they are applying and then can easily read everything they have ever posted. That's why when I was applying I was very secretive about where I was applying, who my POI was, and any other obvious identifying information.Had you not thought about that?
Also, when people are applying, they aren't just applying to work with the advisor. They are applying to be apart of a community. For example, if you said some sort of obvious statement that made identifing you easy, and then say you made some sort of offensive or rude comment, I might mention it to someone in charge. It's not really a huge deal when you mention where you are applying, but I would be prety conservative in regards to mentioning who your POI's are on these boards for the public to see as well as mentioning any sort of identifying info. There are some professors and other graduate students on here that can easily find any post with their school name (using the search function).