Regardless of how much BS this person is spouting or who is ultimately behind it all or what their intentions are, we generally hold that someone has a right to spout as much BS as they want so long as it doesn't put people or the democratic process in danger.
It is possible they are being censored in some places because they look exactly like an influence operation, and COVID-19 misinformation is a huge problem for online platforms right now.
We have people out in the real world right now protesting about Bill Gates' mind control vaccine - activated by 5G - because they have been "memetically compromised" via social media.
I expect it might have gone a little differently if the claims in the paper had been peer reviewed.