Allow members to turn off quote notifications for a specific post

[Colonel_mortis]

Sometimes when a topic is becoming fairly heated, members want to step back and stop replying. However, when they get quoted, they frequently can't resist coming back to continue the argument.

It would be really helpful for those users if they could choose to stop receiving quote (and perhaps mention, although that's less prevalent) notifications for a specific post or topic, to help with their self-control.