On my first playthrough I invested points in Lockpicking. Then I rerolled and didn't invest any points in Lockpicking. The first time I just kept pumping it, hoping that at some point the phrase "Lockpick level too low" would stop appearing. It still does for pretty much everything which matters. Right now the ability feels rather useless.
On the other hand, I see Kantay's point that we might not want to force min/maxers into taking Lockpicking, which would essentially be the result if lockpicking granted XP. It's not like losing out on XP in a limited-XP system is ever a good thing.
That's why I think the best idea in this thread is to combine them into a single "devices" skill. That way lockpicking doesn't have to pull all the weight itself; fun things you can do with traps can be another emphasis of the ability points. Allowing players to use and install disarmed traps themselves would be a lot of fun.
