Are you serious, or just being sarcastic?

With a first initial, last name, and email address, OF COURSE a government agency can personally identify you. There are 12-year-old hackers who could do it. Depending on how much presence the person has on the internet, you might even be able to do it with Google.

As to whether his complaint will get him on some sort of list, again, OF COURSE IT WILL. Whether the list of "people who complained about TSA" is used to bully, harass, or retaliate is a matter open for discussion.

Personally, I don't believe that it will be used for such an activity, at least not right now, because TSA seems to care so little about what the public thinks that bullying complainers isn't worth their time. But there is no guarantee that the situation won't change as the political winds shift, and TSA grows increasingly more invasive and intrusive into our society.

But, basically, the answers are Yes and Yes.

Edited to add: I Googled my own first initial, last name, and email address, and found enough info in the first 3 links to personally identify me easily. Try it on yourself; you'll be surprised at how much you can find out about someone with so little info, all because we put so much of ourselves online these days.