Legobot manages quite a few different tasks, so in many cases blocking the bot is not the best option. Some tasks have an "off switch", which will be mentioned in the edit summary or down below. You can probably also stop the bot from trampling over a specific page using
This bot runs on Wikimedia Toolforge. It runs on the legobot tool account (see recent jobs). Administrators: If this bot needs to be blocked due to a malfunction, please remember to disable autoblocks so that other Toolforge bots are not affected.
If it keeps removing an RFC as expired that you wish to continue for whatever reason, add <!-- RFCBot Ignore Expired --> somewhere on the page. It's your responsibility to archive the RFC and remove the template once it is over.