Watcher by Votes
This workflow automatically sets the project owner (referenced in the code as
project lead) as a watcher when an issue receives a specific number of votes.
Add project lead to watchers list when an issue receives 10 votes (on-change rule)
This workflow helps you automatically raise the visibility of an issue when it receives a specific number of votes. You can customise this workflow to add other users as watchers or modify the number of votes.
When an issue receives ten votes, this rule automatically sets the project owner as a watcher for the issue.