Many of the vouchers are for 1 year. Due to upward pressures/inflation of rent due to how vouchers are administered, people have way less chance to afford something when voucher expires.

Long time tenants in rent controlled units have a target on them since the vouchers are SO much more lucrative.

This has been well known, but glad the WP is writing about it again. The 2019 articles re: Sedgewick Gardens and what a debacle that has been were excellent.