I kept getting an error on clementine and then it gets stuck on updating the library at 98% , saying 

"inotify_add_watch("/run/media/frost/MUSIC_old/Music/[Wheatus]") failed: "No space left on device""

while there is plenty of space free. My music collection is about 100 000 songs large and to run 

echo 1048576 > /proc/sys/fs/inotify/max_user_watches

fix the issue. 

This report here is connected with one crucial question: 

Is there any downside by setting this value such high?

If not, is my suggestion to increase the default value to the maximum.

Thanks a lot