Well im not a lawyer, its all based on my own experience when we wanted to sell our mods. We decided maybe 200, 300 bucks per year is not worth the risk to get sued for a webserver, at worst case a companies webserver, get hacked due to a security leak in our modification
And yes, they for sure would throw you under the bus.
so far i havent heard about a modder got sued either. but that might be mainly cause mods are usually free an its always mentioned that you download and use the software / mod at your own risk. As long as you cant prove a modder of a free mod intenntionally included maleware / viruses, you wont have a chance to sue him.
There might be so paragrahps that might protect a Modder from being held accountable, the question is, if european courts would accept it.
my mother, she once had a small company (GmbH). As her lawyer said, "You can write anything you want in your terms and conditions. You can write excessively that my house, my car, my kidneys and my wife will become your property if I don't pay my bill.
It just won't be enforceable in court.
That's why the terms and conditions always say something like this
"If one of the aforementioned clauses is legally ineffective, the others remain unaffected."