block mit_team?

I would say block it.
I had too a doubt about blocking the user, but then I thought that somebody of the MIT would not create such account on Drupal.org just to make that comment.

The only thing is-- the email on the account looks legit (@mit.edu), maybe an email is in order before blocking?

Uhmmm... That is true too. I guess users should not be able to create an account using an email address they don't have access to (am I right?).

I sent an email to that email address.

Hello.
I am writing you to verify if who is using this email address on http://drupal.org is a person that can read the messages sent.
Is this a email address shared between more than one person?

I apologize for disturbing; I am just trying to verify the account created on Drupal.org.
Best Regards.
kiamlaluno
Drupal.org site maintainer

I have sent a second email.

Hello.
I am writing to verify if who has access to this email address has really created a user account on Drupal.org (http://drupal.org/user/665358).
If who can receive/send messages using this email address (balloon@mit.edu) has really created that account, please reply back to this message; differently, the account will probably blocked.

Best Regards.
kiamlaluno
Drupal.org site maintainer

FYI, I have not gotten any replies, so far.
I start to think that the user created an account only to add that comment; or that, or he created an account to spam, and he added that comment that could seem legitimate only to confuse us.

To make a summary, a user created two accounts on two different sites (Drupal.org and Stackflow) just to write a comment about an event; even if I would expect that a user would create an account on Drupal.org because he is interested on Drupal, this is not a reason for blocking a user.

Vice versa, creating spam posts, for whatever reason has been created, it is a reason to block a user.
The used email doesn't make differences because users must provide a email address from which they can read the password sent by Drupal when they register. That is not something that distinguishes spammers from not spammers.

In the specific, we can assume who posted here can read the email sent at the email address used for the account registration (still, he has not replied to the messages I sent him), but that doesn't make spam posts legitimate in the same way junk messages sent from business companies are not legitimate only because have been sent from real companies.

[Edited by kiamlaluno to fix grammar issues]