Like when you leave a guild you’re locked from joining another for weeks?
Not sure but i just tested it on my main and alts, the penalty is only 1 day for leaving. You can try it yourself by going to manage → leave guild to see the duration.
Pretty sure that’s not the case, it was still 1 day at 1365 gear score.
It seems more related to how many times you have swapped guilds.
AFAIK It is based on how many guilds you have left in the last 30 days/month.
It’s still the same. It resets if you stay in a guild for 30 days