There needs to be better rules regarding frivolous and frankly stupid lawsuits.
It's called Motion to Dismiss, I doubt anyone can come up with a better system at present. Besides, some of the "ridiculous" cases you pointed out ended up won in the end, so either they weren't as ridiculous as you believe, or there is no system that can ensure the outcomes of lawsuits make sense.
have to look at things from different perspectives, including ones that can negatively affect you. Can I sue a person for them not adding me to their facebook page so I can post things they don't like? Can a person put anti-gun signs in your yard and sue you if you throw them away? Can a business fire an employee that trashes the company in public? Do you have a right to perform satanic rituals during church service?
In
my opinion, the answer to your first two questions should be no, but the answer can be yes if the facebook page (or yard) is owned by a large and powerful organization, even private ones, which are assigned to do certain tasks. Likewise, I would say the answer to your third question can be no, in some circumstances. My beliefs are
not consistent with any form of First Amendment law in the USA, which I consider to be garbage.