Thanks CalebJohn, currently I'm only using it on one desktop. I have it on my Android as well, but that one hasn't updated yet and gives the dreaded error - I know that will be corrected when the Google store updates the version 
I thought about disabling the DB notifications but unfortunately I need them for other projects I use with it. I can absolutely live with a few notifications a day, but it's the 5 minute interval that makes it so invasive.
Of course another alternative is changing the sync frequency of Joplin, but... I kinda like the 5 minute updates in case I do suddenly decide to write/update a note and know it'll be available on my phone almost instantly.
Oh forgot to mention: mine mentions "You deleted sync_desktop_etc" instead of mobile, as yours does.
