Original: Membership grew after the riot and meetings and marches were held on a daily basis with regular disturbances in the town centre.
Simplified: Membership grew after the riot and meetings and marches were held daily with disorder in the town centre.
Simplified: Membership grew after the riot, meetings and marches were held everyday with regular problems in the town centre.
Simplified: The group grew after the riot and meetings and marches were held daily with regular protests in the town centre.