I have hardly used TeX for myself in the last couple of years, but I still help out many users in #latex on freenode. This poses interesting questions every now and then.
82 pgf-Tikz QR code generator jan 6 '13
43 Clearpage without pagebreak? dec 30 '12
37 How to implement a \tomorrow in latex dec 17 '12
11 How to define a command using \lowercase in \csname sep 29 '13
11 How do you detect restricted write18 support dec 30 '12
10 How do you count the number of times a source has been cited in a document? [duplicate] nov 30 '13