I don't think it stress tests LN at all since most addresses here are on WoS. They don't even have to make a LN transaction, just change 2 values in their db.
Discussion
Not all, and it changes rapidly. I am hosting my own, and many more plebs do that too. Plus, we also stress test WoS infra, which is good, since it’s a wallet of choice for new comers. 🐶🐾🫡