I don't care for it myself but (for the little I looked) I think they made a nice effort with the website. They are excited about the places they visited and felt the need to share them. In itself, that is something constructive and it's better than playing videogames and sneaking off to the pines to get drunk with their buddies. So part of me wants to encourage them, while hoping the experience ultimately causes them to have respect for our history and special places. I mean - they're really just kids, they are learning.
OTOH, I do have a real problem with the attitude about graffitti in the closed thread that Guy linked to. This is definitely "not cool" in my book.
And I also have a problem with climbing the ruins at Harrisville (see the picture that Guy linked to). But, like Al said, most of us did some things at age 22 that we aren't proud of today. People grow up, they change - hopefully for the better.