I would hope the potential hazard of lithium batteries be more of an everyday common knowledge among all users of electrical devices.
Also hope the manufacturers invent some safer batteries.
I have some unused battery packs of 18650x4 sitting there and I just recharged all of them for about half hour to make them stay partially charged. I guess it's a good idea to periodically recharging them slightly if they have not been used?
The only time I have had a problem with one of my batteries is when I dropped it and it damaged the protection circuit. I just soldered on a new one.