Authorship probably found a lot of bogus bounty referrals in their system and did not want to honour these apparent bogus bounties. But the subsequent actions set a train wreck in motion that Authorship team is still to recover from. Instead of filtering out he really bad stuff and focus on those cases, they took a very broad knife and cut out a lot of probable honest referrals from the payout.
The rest is history.
I have been paid my 2110 ATS tokens 2 days ago..
I think they regret their actions.