Facebook received enormous pressure after the 2016 election to get their platform under control and hired over 30,000 manual moderators to try to prevent their platform from being leveraged by malicious actors to spread misinformation. [1]

It's reasonable that Twitter should begin to be less permissive on their platform too, to get ahead of controversies that might occur on their platform in the upcoming election. Twitter political threads are still lawless wastelands full of incendiary comments from suspiciously bot-like accounts, so clearly something has to be done.

[1] https://www.telegraph.co.uk/technology/2019/12/17/google-fac...