I thought this campaign was over. How can I get back into the company now? I thought that if the signature is changed then this will be displayed on the panel in the personal account. I didn't realize until three days later that the signature had been changed. I'm confused 
There were atleast two users who I know removed their cryptotalk signature when the investbox/x10 was introduced but they were able to rejoin when the signature was changed to yobit airdrop/700 yodollars. Some users were unlucky and got kicked out although they were active. We can only speculate that yobit decided to kick everyone not wearing the latest correct signature two days after it was posted. There's no getting back once your yobit account was disabled for inactivity like what acroman08 said. Well, it was Christmas and the campaign lets people go away for 1 month (unless something like this happens). Its not like everybody treats this as their job and live out with if (imagine dinning with out family and excusing them to check Yobits bitcointalk campaign, lol).
I object to your thoughts. Take a look at the quote below. How long is your Christmas? You have at least 2 days to update the news and correct your signature, it's not too difficult for you to spend 15 minutes a day checking for updates from the work you're doing unless you don't want. It has been 4 days since the signature was updated and you don't have any time to check out the campaign you're doing 
I don't mean to accuse anyone, but obviously you can do better if you want, just 15 minutes is enough for all.