I was reading some topic few days ago, and that topic led me to this post of
LoyceV where I read that, theymos address has 750 BTC and I did not believe it. Then I checked the theymos profile, and an address was mentioned there, and I checked it on blockchair explorer and found out that, there are 2 addresses connected to it one is of BCH and one is of BTC. Well, on checking, he has around 388.96 BTC. Then I came to get the idea of finding out how many BTC does the administrators of this forum have. It is possible that these administrators might have other addresses containing more BTC, but my way is simple.
I went to each profile and checked the address mentioned there on blockchair for the amount of BTC they have received or sent.
First of all bitcointalk does not have "Administrators", we have only one "Administrator" that is theymos. Yes Bitcointalk have moderators and staff.
Secondly I don't know why we should be calculating how much BTC theymos or forum administrators are holding? Does it have anything to do with bitcointalk forum?
Yeah you can check how much donations forum has received this information is available
https://bitcointalk.org/donate.html for quite some time.
Or may you just want to say how much bitcointalk forum is paying to it's Staff or Moderators? Of course that's something confidential info you can't calculate just based on some random public bitcoin address.
Forum has some expenses other then hosting or maintenance expense, moderators who working to make sure bitcoin it does not turn into garbage

Also once theymos said moderators should be seen as volunteers, not employees.
About 25% of ad income goes to the forum moderators as thanks for all of their work. (There are many moderators, so each moderator gets only a small amount -- moderators should be seen as volunteers, not employees.)
FYI above quote was true when there was advertisement on the forum, which has been stopped so we don't know if its still true, but moderators should be seen as volunteers should be true.