Edit: Also the event you described happened much earlier than when the drop of Cloudflare captchas happened, which was around if I remember correctly when Google announced "invisible captchas".
Well, it's not.
> The problem is that Cloudflare blocks Tor, not Tor Browser: not every Tor user uses Tor Browser.
Except the advice is, even when it does block Tor Browser, as they say it doesnt, the answer is to use Caching services.
The problem here is, it's now taboo to call these issues out. My posts' scores are -3, -1, and 1... I highlight this because it hid my main post. And alas, "-1" is used to silence legit grievances.
Well then they did a favor to you and you should thank them, if you're using Tor without the Tor Browser chances are big that you're screwed by your fingerprint and lack of first party isolation and stream isolation, see the 2nd last paragraph here for example https://news.ycombinator.com/item?id=14583699