We are talking the plot, images and catches phrase. For my part, I like the Mandalorian. It's plot lines are simple but they are well constructed. I'm not sure if relatively simple plots make spoilers less problematic or more problematic.
Sure spoiler worthy. Most of the world won't have any chance to (legally) watch it until April this year. That's the minimum. I'd say in July or so the spoiler tags can go, as most people will have had a chance to watch it. Sure, a few things (such as the characters) are all over the Internet, but the plot isn't.
Reasonable, though I'm pretty 99% of the people on L-O know who the main supporting characters are, we'll take a hard line on Mandalorian Spoilers till the last episode is widely available legally around the world. Or in the Lustria-Online world which is Europe, North America, and Australia. We'll even try to avoid catch phrases. I wasn't going to go with a 51%, I wasn't going to lift the spoiler order unless the "No"s outnumbered the "yes"es by a wide margin. When I have finished talking, further discussion is moot because my word is strongly implied but not explicitly stated to be final. Wow that was clunky.
I voted "no" for myself. Totally been reading the Mandalorian spoilers thread this whole time. Baby Yoda is like the genestealer cults... he is everywhere. Then again I have no problem with leaving the Mandalorian memes in the Mandalorian thread