What this means is that all speech regarding working conditions, pay, benefits, and the like are protected.
All speech regarding the forming of a union or other mutual aid association is protected.
As well; it is prohibited for management and their representatives (mgt pilots) from trying to determine the activities and names of people who choose to engage in this activity.
It is also prohibited for management and their representatives to make any attempts to discourage this speech or to sway the opinions of those engaged in this speech.
Any attempt to do so could result in prosecution.
The law makes no exception for online forums and the types of speech described in the law are therefore protected whether online, in a public meeting, or in private.