So you aren't actually using MS Paint to draw these, right?
Damn, exposed as a fraud right out of the gate!
No, you're right, I use Photoshop. I started out in MS Paint (in fact, the only image on this site done in Paint is the very first one). But I quickly switched to Photoshop. I needed to be able to keep things on separate layers in an organized series of files as the stories built in complexity. "MS Paint Adventures" was what I named the game before any of this became an issue though, and the name just stuck.
All of Problem Sleuth, Bard Quest and Jailbreak (sans the first page) were drawn (and sometimes animated) in Photoshop. Same with Homestuck, except for a few pages made with Flash here and there, to facilitate sound and interactive elements.
So how did this all start, anyway?
I started it as a game in an online forum. The idea was exactly the same, but people would post their command suggestions in the thread, and I would reply to the thread with images. Pretty much the entire Jail Break adventure was developed in this format. I moved it to its own website for archival purposes.
What is the site's update schedule?
There isn't one! Unless you count "a lot" as a schedule. I'm usually putting stuff up just about every day, and usually multiple pages with each update. But I reserve the right to miss an "update day" here and there. Or even disappear for a week if I want to. I sort of like to think I can do whatever I want.
What do you use to do animation?
Mostly Photoshop CS3 (Problem Sleuth) but lately, Flash too (Homestuck).