Many XRBs has been made using software, not actually human solving captcha: https://www.youtube.com/watch?v=7G71kRyn6gU

(Audio captcha too were solved by BOTs)

Moreover in April 2017 they 'changed the system', no democracy anymore:
"only top 60 claimers will be received the coins." (so the actual whales pumping the price and dumping to newcomers)
- http://cryptoleet.com/raiblocks-new-cryptocurrencies-based-captcha-services/

And here people talks about "freedom".