they seem to be tireless with opening new accounts and starting with a new signature campaign.
I don't think they get tired. The fact that they will open new, short-term signature campaigns has been announced long time ago:
We just launched a 1-week signature campaign - this will be one of many others upcoming soon.
As for the new account, it's probably the result of this recruitation:
also we are open for campaign manager applications for further campaigns in pm.