While it's plausible that "harassment" is coming in in some other form, visible posts seemed fairly civil.
From what I could see though, they received relatively few responses, even at the best / worst of times.
I think there is "harassment" (someone said something mean to me online), and then there is *harassment* and that is quite a bit different. Plus, this is a government official delving into the thorny area of speech.
This was also an official who behaved *deliberately provocatively*, then they were upset about how people apparently responded to them.