Do I need Fuse?

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http://forums.fedoraforum.org – I was pruning my services after a re-installation and I came across Fuse. A search on-line revealed various (mostly incomprehensible) accounts of what it does, but not whether I needed it. I disabled it, but then read a guide to service management that said it should be left enabled. So far there have been no visible consequences, but should I be turning it on again for fear of facing the end of civilisation as I know it? (HowTos)