I know, but it does prevent him from mining proof-of-work with your CPU and GPU, spares your bandwidth and leaves more space for relevant content on your screen.
It does all that, so the damage does not stay the same.
And you will even know that it is there, because I only recommended to mute popcornexpress.
You will still see the exclamation mark followed by the word popcorn and have an opportunity to share this advise with potential readers.