That's just smart browsing. How do you continue conversations in threads you've posted in? If I search my name I can see everyone that's quoted me to respond to. This board used to have a "who quoted you" option but that's been disabled for a while.
Either way, none of that has to do with maturity. If you think I search just to see who's talking about me, then that would be vanity if you wanted the right word.
Then a funnier post would then follow it up with this:
https://www.youtube.com/watch?v=mQZmCJUSC6g
I just scroll back until I find it, and if I can't find it I send a PM. Continuing a conversation from more than a few pages ago in a thread that's already WAY moved on isn't exactly how big threads should work - if you've missed the train, move to PM.
And I really don't care much how old/mature you think I am, just because I'm changing your name in quotes because I think the need to keep track of everyone talking about you (NOT just your own conversations) is hilarious.