I wouldn’t use the terminology interact with hit point mechanics so I can’t agree or disagree about that until you better define it for me.
I will add this. Why do I say nets always deal 0 damage? Because when you are hit with a net you always take no damage.
I would love for you to define what damage is and what 0 damage means. I have given my definitions. What are yours?
There's no definition for damage in regards to a net. The item 'net' does not interact with hit point mechanics. The same way that Thieves tools do not interact with hit point mechanics. You ignore hit points when using these tools because hit points are not applicable to their function. They use a skill roll or saving throw mechanic which is separate from hit points.
I don't say, 'when you are hit with a net, you take no damage'.
I say, 'when you are hit with a net, you become restrained.'
When my character hits someone with Faerie Fire, I don't say 'you take no damage.' I say, 'you must make a save or be lit up.'
When someone uses Deception on an NPC I don't say, "He believes you and he takes no damage"
Nets, Faerie Fire and Deception checks, if listed on a table, would have a weapon value of '-'
You notice how it's a totally different mechanic? I only say, 'you take no damage' if something hits you and there's damage but the sum of that damage is enough to result in 0 damage. Like if you have Heavy Armour Expert and you take 3 damage but your Feat absorbs that damage and you, therefore, take 0 damage. Because both being hit by a weapon with a weapon value of '0 or greater' and Heavy Armour Master interact with the hit point mechanics. Nets do not have a weapon value of 0. They have a weapon value of '-'.
I actually believe you are goading people to see how long you can make this thread go.