Yeah, except the whole issue with that notion is that filing such a suit is a waste of time and money for LG for something pretty damn petty.

But that's the point. Sony did this to them, they're doing it back to Sony. When Sony says 'Stop being stupid, you didn't own what we used,' they can say the exact same thing. It obviously isn't going to cost them a massive amount of time or money, or perhaps their thinking is to spend that time and money on this instead of spending equal time and money on a defence, but either way they're a big company. They know more about business than a bunch of random people on Gamegrep.

Of course the difference there is that you're completely taking a shot in the dark with this and Sony probably feels they had legitimate lawsuits, while LG is simply saying "oh yeah? Well here is a pointless lawsuit just to say screw you and cost ourselves some money". It is completely ridiculous.

Okay, so let's assume Sony's claims against LG hold any water.

WHY would LG do something like this? If your only reasoning is that they're stupid, you're highly naive. They have teams of people who together know more about business than your singular being does, and that's not meant as an insult but just a fact.