Why do theoretical computer science people use Comic Sans in their slides? I have no data to back up this observation, but it's something I have noticed consistently in research talks and teaching material: People from the theoretical CS community seem to use Comic Sans a lot, a font-face that emulates the look and feel of hand-drawn fonts in comic books. Is this merely a convention or is there a deeper reason behind it?

EDIT1: Since a couple of users requested examples, here's what I came up with in a 5-minute search:


Probabilistic model checking in practice
Symbolisches model checking
A complexity measure on Büchi automata
Fundamentals of programming languages
Formal modeling methods


EDIT2: The point of this question is not to collect opinions, but to find out reasons why TCS people use Comic  Sans (and the answers so far already did an excellent job in this matter).
There's no deeper reason behind it. I think people just like it, particular its informal feel.

Theoretical computer science is a pretty informal and laid-back field. Although in many fields Comic Sans would be considered unprofessional, the standards for "unprofessional" in TCS are much more relaxed. For example, I've observed that it's far more common for professors and students to be on a first name basis with people in the TCS world, and the tone in which papers are written are much less formal. It is typical for times problems to be described with little narratives or jokes, and often problems retain names based on how they were originally presented. For example, there’s the Handshake Lemma, the Traveling Salesman Problem, and the Arthur-Merlin Protocols. That’s not to say that informal names and presentations of theorems don’t exist in other fields, but in TCS I would go as far as to say it is typical.

Heck, in his recent landmark paper on Graph Isomorphism, Laszlo Babai wrote something that could very reasonably be interpreted as a sex joke. In many fields innuendoes such as the one found in his paper would be considered wildly inappropriate. I don't know if the sex joke was intentional, but the line (although it's been noticed by many people) hasn't seems to cause any blowback or embarrassment.