Apparently, this user prefers to keep an air of mystery about them.
14 Help me put these enormous numbers in order: googol, googol-plex-bang, googol-stack and so on dec 19 '11
12 What is the biggest fivedigit $abcde$ number, thats divisible by $bcde$, $cde$, $de$ and $e$? mar 9
5 Ordinal interpretation of Friedman's $n$? mar 10 '13
3 Lower bounds for bb(7) and bb(8) wanted apr 2 '14