Monaco shut down their Slack because too much reality was starting to show up.  All of you Kool-Aid drinkers must have come here.

https://monaco-card.slack.com
Their slack channel.

I press "Get my invite" and nothing happens, just "Please wait'.

I know the whole crypto market is in crapola red mode today but making false assumptions without any real news is just spreading FUD that is totally unnecessary and it doesn't help to stablilize the markets by spreading false rumors. People come to Bitcointalk to look for news, we need to act more responsibly if we want new investors coming into crypto, we need to control what comes out of our mouths and start acting more grown up. This is all getting serious now, people are investing millions into Crypto and now getting rekt so we need to all act with caution and wait for formal announcements from MONACO themselves before we spread news here.

The Monaco Slack is operating just as it always has.  The current turmoil has nothing to do with Monaco and is instead all about Bitcoin:

https://bitcoinmagazine.com/articles/countdown-segwit-these-are-dates-keep-eye/

Look at trading volumes.
No one (or very few) sold below ICO price.
There were no tradings on MCO yet.
Just 1.5 investors, bounty hunters-dumpers and bots participated.