Citing a perceived threat to its blockchain, Steem has frozen 17.6 million tokens held by its former witnesses
Source: https://cointelegraph.com/news/steem-soft-forks-to-freeze-176m-tokens-held-by-former-witnesses
Steem Soft Forks to Freeze 17.6M Tokens Held by Former Witnesses
April 6, 2020
CoinTelegraph