Maybe they meant Tailscale's new feature which essentially does what ngrok can do.

https://tailscale.com/blog/introducing-tailscale-funnel/

The audience is developers and anyone testing server apps locally. You can do the same thing with a vps and ssh reverse tunnel or just use tailscale which can do the same thing. Do I have to spell out the details of what tailscale supports vs ngrok or can you make that comparison yourself? This is a comment not a critical blog response.

The topic is ngrok's valuation, my response was how there are alternatives. How is that not valuable or relevant to the topic?

Malware abuses them a lot! That's what i meant

I can confirm this. We work a lot with hospitals. When we want to let them try our services behind ngrok domains, they are often blocked. Unfortunately.