I'll start by making this clear up front: I play a lot of games in masochism mode. I like a challenge that tests patience and perseverance and that's a big part of what draws me to this server. No new quest indicators on radar/map, no objective area indicators on map, ability to slow down exp, etc. Only thing missing now is Frostfire + Campfire + Last Seed. : )
However, on to "rested" exp. I actually really like the mechanic, and I agree it should stay at 100%. However, it feels out of place that once I rest at some point it just stays around until I choose to use it up.
Current rate of gain in an inn looks to be about 0.03%/second. I'd like to see a decline rate of something like 0.03%/minute or so upon leaving an inn. I think this would promote skilling up survival skill (which I love) for tents, which could be used to balance this in the wild, and make it at least a bit tougher to maintain what is currently an easy perma-100% exp increase (as long as I'm not completely lacking planning).
Would be curious to know how others feel about this. I do understand this would likely prove script intensive but I've been thinking a lot about the resting system as I've played through slow challenge and this feels the most natural way to counter an easy counter to the challenge.