Jokes apart, there're really risks for serious damages. I foolishly installed what would be (and to check another thingy, I didn't was aware yet of the potential problems) on my Career installment, and everything worked fine for some time - until I installed an old Add'On.  Dude, this dud sas didn't had recent backups when i realized the breakage it had done, and I spend the whole week fixing the mess by hand - I was lucky for being able to recover from the damages, but I also becam