shakin_the_bacon

Yes. If the airline decides to reroute you due to a plethora of factors this can happen. However it is rare.

This will only happen if you book it as a round trip (which skiplagged specifically says not to do and to book them as 2 one way flights). And it's not a "might" it's a "they will" cancel the other legs if you miss one in a round trip flight. If you miss a leg on a flight the airline will cancel the remaining legs, it's policy.

It can happen and the airline can demand payment for the difference in the fare and/or ban you from flying with them. See this post from r/legaladvice. You agree to the airlines terms and conditions when you book the flight, it's the risk you run doing this.

Routes being dropped and serving less cities? That's an extreme inconvenience to people. Due to the fact companies will see load factors on these legs suffering , which in turn they will drop routes

Thank you. I get that people want to save money, I really do. But all this is going to do is hurt people when routes are dropped due to volume. That, and my guess is a shift to requiring checked luggage rather than carry ons.