Interesting idea but didn’t really work

I inherited an existing website with this plugin installed. I tried it 6 months ago but it was rating everything too good to be true, maybe because the code hasn’t been updated for a while.
Anyway, I’m not here to critise. I just want to say that when you delete the plugin, remember to delete the profiler.php file in the mu-plugins folder, otherwise you’ll get a white screen of death ??