Not to much on tapastic, but on mirror sites I also post my comics on I do (mostly for Raven Wolf, but a few have been popping up for No Future here and there as well) I mostly ignore or don't answer them, but for the sake of either shuddering or laughing it off, here are some types of creepy comments from various people have left to me or sent my way (and not limited to)
What is the dick size of 'character name'. You should know, you created him.
Are your characters virgins, are you a virgin?
I like when you draw little boys charging at me with anger in their eyes.
Hey what are you sex fantasies of your characters? ALL authors have sex fantasies of their characters. Are you into kids? You have a lot of younger characters so that makes me think you are. Are you into black people? You have a lot of black characters.
I notice you don't have a fursona but draw a furry comic. Or are the characters in your comic your fursonas? Do you not have a fursona? I can create one for you so you can do adult RP, or you can RP with your characters that works too.
Hey I got this really adult scene in my head that you probably will not put in your comic since you are a clean artist. Want to hear it?
(using my pm or e-mail like it's an instant message service)
Hey,
Poke,
Hey,
Are you there?
Hey.
Hey I just have a question.
Haha.
I just had this funny idea.
It involves your characters, and they just got married, and they're about to lose their virginity.
Want to hear it?
Hey?
You there?
Okay here is my idea---
Are you single? I don't like when my artists are dating someone. I'm over protective of my artists.
Hey me and my friend RPed your characters and had skype sex, here is the entire conversation if you're interested. You don't have to read it if you don't want to!!!!!!!!!! 'insert copy paste of entire RP conversation'
Does your anthro cat character have a barbed penis?
So I was googling your name looking for images of you, and I found one, and I just want to tell you are that are really hot, and also hope that you don't find it creepy that I have been googling for pictures of you.
And then there was the one that figured out my address from somewhere, and when I made an announcement saying that I could not work on comics because the electric wiring in my room fried and all needed to be replaced. They put my address in google maps, found my house, and proceeded to tell me that I was being a lazy artist and making stuff up because my house looked too new to have faulty wiring.