>I had one client that started getting their product catalog scraped aggressively, and the invoice for their licensed font usage that month was an order of magnitude higher than they expected (low six figures, vs. low five figures).

so, my corporate dirty tricks campaign company could offer to make your competitors advertising costs go through the roof if I find they've been using the wrong fonts?!?

> Ended up using a Worker function to tidy up after the janky WAF header mangling, got them to remove the explicit challenge page, and just swapped out the licensed font for a generic/free one for suspicious activity.

So if companies experience expensive font download attacks I can send them a reasonably priced offer for consulting services to fix this problem!?!

'but what about ethics'

grrrr, I hate that good angel.