How is 100 tokens ($5 in your pocket) too much to charge for looking at a random dude's dick? Not only are you looking at his dick, but he's probably gonna be asking you questions about what you think of it, what's the biggest you've had, and what number would you rate it. Lol. So $5 to look at his dick and then be expected to talk about it. Plus you're probably expected to do all of this via private message, which means your attention is now being taken away from the public chat. That is the exact reason I stopped offering c2c for tips, and will only do c2c in private or true private. I don't want my PM conversations taking my attention away from the public chat.
He's being a cheapskate. I've seen guys tip a model more than that while they watched her eating eggs for breakfast.