Kyanar:
Based on my previous experience with CAPTCHAs, and the now lack of them, it appears Cloudflare doesn't like the MetaMask extension.
I wouldn't trust it either. Interfering with webpages I am visiting? No thanks.
"The extension injects the Ethereum web3 API into every website's javascript context, so that dapps can read from the blockchain."
"Because it adds functionality to the normal browser context, MetaMask requires the permission to read and write to any webpage."



