Apparently, this user prefers to keep an air of mystery about them.
8 Is the Cayley graph of Thompson's group isolated in the space of vertex-transitive graphs? Feb 3 '15
8 Busy beaver function vs low Turing degrees Nov 26 '14
7 Antirandom reals Sep 27 '15
7 What is the Arithmetical complexity of determining whether a 2-ary computable predicate has exactly one infinite column Jun 7 '13
5 A question on many-one reducibility Feb 23 '15
4 Indices of r.e. sets Mar 15 '13
4 Is every non-recursive set in $\Sigma_1$ complete in $\Sigma_1$ (relatively to many-to-one reductions)? Mar 22 '14