I posted a reply on this thread:
https://powershell.org/forums/topic/how-to-ignore-first-open-barkets/
But that thread, and only that thread, are giving me a 503 Service Unavailable message when I try to open the thread - I also got the message immediately after submitting the reply.
Have I tripped some kind of bug in WordPress or the plug-in that parses the code for formatting?