God, I only use Ublock Origin on Firefox. No TOR, VPNs, or anything like that.
Despite that, there are a handful of Google-related websites like Virustotal that now permanently trap me in repeating captchas. Youtube will occasionally decide to block my IP entirely for a week.
Let me tell you, this shit doesn't make me more inclined to disable ad blocking. Instead, I've starting finding alternatives and using a sandboxed vanilla Chromium for problem pages.