Chrissy LeMaire has a Powershell ad blocker:
I really abhor the new ad in the PowerShell 5.1 console and it seems there’s no hope of Microsoft making it go away.
After a long, involved Twitter conversation with the community and the PowerShell team that confirmed it’s impossible for the advertisement (?!) to be easily removed, it looks like the only solution is to bypass it. Przemysław Kłys has a great suggestion to emulate the old prompt that totally works!
Click through for that solution.