Anything specific to watch out for?

On what url were those? Or Cloudflare's TOS in general ?

Yeah, but then you are always exposing your public IP.

feels more like an ngrok competitor

Cloudflare Tunnels has been a free service of Cloudflare for quite a while now. What's new is being able to use them without needing an account.

Not many people run their local machine 24/7.

This is pretty great and I think this will be quite important in the age where everyone has their self-hosted services.

If there's any company in the world that can survive a lot of extra traffic being pushed through their systems it's Cloudflare.

I bet these new tunnels end up being a fraction of a percentage point of their network traffic.

Yes they actually do, but because its cloudflare which is offering this, blacklisting it might lead to blacklisting can be more negative and cloudflare has a much higher incentive to not make these tunnels useless. They are also more powerful and can fix things which would be harder for smaller companies to handle (atleast within the context of cloudflare tunnels)

Wow, exfiltrating data has never been easier!

I don't know if there's an overall limit, but their regular tunnels have a limit of 100 MB per request which breaks stuff like Immich.

I honestly can't tell if you're trolling or this is an HN out of touch moment.

The obvious difference (and thus massive advantage) of the cloudfare product is that it is accessible over the normal internet without needing to install a tor client.

I'm sure that works for some subset of the population where all potential users are already comfortable using Tor; but imagine trying to share your PoC website with the designer/client and you are asking them to install Tor browser.