Open Collective although a very good platform, uses a traditional clould stack (cloudflare, aws, etc.) which is actively harmful for digital rights (something that ironically many their collectives fight for, including the Tor Project).
Cloudflare is now blocking Tor users via a continuous loop of a “bot verification page”. The fact that Cloudflare blocks Tor users is nothing new, but I find the fact that Open Collective uses this harmful technology appalling.
I have opened a support ticket just now to bring their attention to this problem and suggested that they consider alternatives like