I had a big thing written in response to this and decided against posting it. All I'll say is that -
*It is wrong that the software doesn't provide an opt-in/out mechanism prior to sending data.
*The recommendation to disable your internet connection first is terrible as you would literally have to read this post to know about it.
*Lansweeper should have a technical lawyer determine if what they are doing creates a legal problem.
You are providing an opt-out only after you send metrics?