You will sometimes find me at questions about theoretical stuff, at password-hashing, classical primitives, protocols and usage of cryptography.
If you think "that potato [on the left] is pretty!", go and thank our ex-mod e-sushi for his amazing work (and please don't flood him with requests for fancy account images).
Note: My position on using my (answering) comments. TL;DR: Go ahead and earn yourself an upvote!