A meeting participant can delegate his invitation to someone else but cannot invite or forward the invitation to a colleague.
The meeting chair could have an option to prevent this just like the 'prevent delegation' option.
Currently when you are mentioned as 'FYI' invitee to a meeting, you will get the same text in your invitation as a 'required' invitee. (see picture)
For a person it is not clear they do not absolutely need to be present.
I'd like to have the invitation's text to ...