Except you're not then pounding on some pet side-project "API" stood up by a poaching agency...
Seems insane anyone would even entertain the thought... it's trivially easy to minify whatever you want right within your app.
And now here's OP bagging on this company for not disclosing this in some ToS or whatever, even though OP is the one abusing a free, obviously not-serious service.
Well when you google "CSS Minify" or "JS Minify" it's the top result - so it clearly isn't some low use tool. I just decided to use it for HTML as well. Wasn't "pounding it". The API limits to 30 requests per minute. I made around 50 requests in 3 minutes.
Most local minification packages I tried spit out garbage, so just went with their API. Took a few hours to get a proper package stood up (the one I mentioned above).
I'd generally just assume that if you're injecting tracking/ analytics into an output you'd tell folks. As they didn't mention it, thought I'd just alert folks. Not sure why you're so outraged I mentioned this is happening.
Flabbergasted this idea made it's way into a real app, and flabbergasted this post made it's way onto the front page of HN.
You went through great lengths here to make sure everyone knows a random for-funsies "API" from a random google result doesn't behave like you expected it, complete with the multi-tweet write-up and everything.
Looking at what Toptal does, it seems glaringly obvious this "API" was setup for interview coding questions - nothing more.
You've drug this company's name and reputation through the mud, right onto the front page of HN. All over a misunderstanding on your part, as we all now know (Cloudflare doing what Cloudflare does and all...), and a misconfiguration on the web admin's part (missing page rule apparently).
I'll leave it at that... but perhaps your post/thread should be updated to indicate this company is in fact not doing what you have accused them of.
Seems insane anyone would even entertain the thought... it's trivially easy to minify whatever you want right within your app.
And now here's OP bagging on this company for not disclosing this in some ToS or whatever, even though OP is the one abusing a free, obviously not-serious service.