User groups management

User rights log

• 15:56, 30 April 2021 ST47 talk contribs changed group membership for Tinh1000000 from (none) to IP block exempt (temporary, until 15:56, 30 April 2022) (ticket:2020021910009843)
• 01:44, 20 February 2020 ST47 talk contribs changed group membership for Tinh1000000 from (none) to IP block exempt (temporary, until 01:44, 20 February 2021) (ticket:2020021910009843)