"Ah, Mhairi Black retiring will be a loss to Westminster, not just because of top quality zingers like this today."
"Mhairi Black’s departure speaks volumes," wrote one person.
Never misses a chance to hold the government to account.
"The most trustworthy politician out there," wrote one person in response.
"I wish I could vote for Mhairi Black," wrote one person.
" If she became First Minister of Scotland I’d pack my bags and move up tomorrow."