Celebrim said:
That is in my opinion, extremely poor design on the part of the DM. You are punishing players for getting skillful at something, rather than letting them enjoy the rewards of thier skillfulness. Some DC's should scale with level, but on average walls shouldn't get smoother, floors more slippery, treasure more exotic, objects harder to craft, runes harder to decipher, entanglements harder to escape from, ropes harder to tie, animals harder to handle or ride, weather harder to survive, wounds harder to treat, and so forth simply because the characters are getting tougher.
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Actually, I would disagree and state in fact that most skills do scale with level in that skill encounters become more dangerous AND the use of opposed checks.
Take Balance for example. At 1st level, forcing a party to fight on a 2-inch wide bridge that is severely sloped, slippery and obstructed (DC 32) would be equivalent to putting the party up against a 15th CR monster. What you put the 1st level party up against is crossing a bridge that's 7-12 inches wide (DC 10).
The same thing applies to many other skills with multiple DCs. It seems like the designers fully intended for skill challenges to be set for the appropriate level of the party. Sure there are DC 10+ obstacles but just like monsters, they should only show up at the appropriate level for the party.
Then there's the skills that do scale with level DIRECTLY. For example, at first glance, Rope Use doesn't make sense that ropes are harder to tie one could argue. However, Rope Use is what used to oppose Escape Artist checks and Escape Artist checks itself are also used to get out of grapples which DO scale with level.
Same thing even shows up with Handle Animal where to rear an animal its tied to the HD of the animal (which is somewhat bogus given that elephants are generally considered much more trainable than say wld cats like lions/tigers)
Similarly, there are opposed check skills like Bluff, Spot and Forgery which have no static DC
Basically, skill challenges SHOULD be more challenging as you increase in levels since this is what it seems like the designers intended for.
True, there are skills like Appraise which has only 1 static DC but even here, I tend to come down on the side that believes that by 20th level, even the barbarian PC should be able to know more about diamonds/rubies than he did at 1st level.
The thing is, he only knows as much as a 1st level Professional Appraiser (a,k.a, has just opened his first shop/still on the last leg of his apprenticeship) using the SWSE which I think is fine/realistic.