As far as i know facebook still allow people to promote these ICOs using their profiles in their own will,but if you are violating the terms and conditions of facebook surely you will get disabled especially those spam posting when you are doing social media campaigns so be careful posting these promotional links.
Even there's no more facebook campaign there still many way to promote our campaign. Maybe we should focus in other thing to promote our campaign because there's many social is still accepting crypto to promote. And i think before we promote our participated ICO make sure its legit because sometimes it is the reason why some social media disallow crypto.