I think that the answer to this depends on the audience and the topic or nature of the discussion.
I prefer precise, technical language if the audience has experience in the topic. You can save a lot of time by not explaining things that the readers should, reasonably know.
I think simpler language is appropriate for a more general audience or higher level discussion.
It can be challenging to find the right balance on a forum, like this, where you don’t necessarily know who the audience is.
It is just a public statement of support. There are only consequences to the extent that people care about/respect the opinion and judgment of the person giving the endorsement.
In this case, it’s valuable to RFK Jr in so far as individuals listening to Joe Rogan either think Joe has good insights into who should be president, or just want to be like him and will vote the way they think he will vote