Shut-down the forum / Turn-off posting

But (I’ve learned just now, when searching for similar posts on meta), its to be WARNED IN BIG WORDS, that once you enable this ‘Read-Only’ mode, and while experimenting or doing something, if you happen to close your (incognito) window tab, or log yourself out for any reason, even for 1 minute, THEN THERE IS NO WAY TO LOG YOU BACK IN!!