Polkadot cuts active validators from 500 to 400 on Nov 18, tightening staking competition for DOT holders.

Polkadot will reduce its active validator set from 500 to 400 starting November 18, following Referendum 1969. This cut tightens competition as the validator ranked 400 currently has about 1.68 million DOT backing, close to the 500th's 1.65 million. ...