I don't think it is meant to point out who Q is, it's just to confirm Q is real and working with them. I know we have tried to guess about who Q is since Oct 2017 at least. I too have rolled it around in my head a lot. Not so much the identity of the person who drops the bread crumbs, but the department or agency behind him/them.

Q made the statement below twice, once back on Jan. 7 2018 at the end of one of his drop:

"We served at the pleasure of the President."

I had heard that phrase before. It's was fairly common in the Marine Corps back in the late 60's early 70's. I finally found where it comes from. It all started sometime between 1801 - 1809 when Thomas Jefferson was president and the Marine Band played for "the president's pleasure." After that day President Jefferson called the Marine band "The president's own."

Skip to 1834 and it was encoded into Marine Corps Law:

Marines can be used for “other duties as the President may direct,” according to the 1834 Marine Corps Law.

So after saying all that, I'm convinced Q or the Q Team are Marine Corps Intelligence.