Because its leaking radiation (I’m so glad you looked that word up) possibly because it’s so old. Now it won’t do you any harm but here’s the thing is. That radiation will at some point increase and begin to interfere with others Not just at 2.4ghz either you will get harmonics that could effect other services. Now to me looking at your post histroy you seem to me that type of dickhead that would willingly cause interference just for kicks.

That a good enough reason sweet tits or do you need it in braile?

It’s broken because its leaking radiation and needs replacing. wattage means nothing I have radio equipment that I use for work that would knock most routers over with 0.5 watts if it’s not shielded right.