Woodman,
The answer to your question is yes, you can bait bears to a trail cam all year long if you like and it is perfectly legal. What others are saying is simply be careful. Make sure you never go in the area with any type of weapon because if you do and someone sees you and turns you in the WDFW would interpret it as hunting and it would be up to you to prove that you were not. I would not even have a weapon in my rig if i were you. So as long as you are only baiting with the intention to take pictures you are 100% legal. "For now!"
This happened to us once .. a buddy was baiting deer and someone saw the bait and called in ... after surrounding our camp they said someone said we were baiting bear and when they went to check it out ...guess what ? their was a bear on the bait .. so they tried busting my buddy but could not prove he was targeting bear but they also said if he shoots the bear near the bait it will be considered bear baiting .. So be careful because its easy to guess what they might do compared to what they will do !! 
This same thing happened to a person that I know this past year up in Pend Orielle County. The only difference is, he shot the bear. The game department found out and they came in and confiscated the bear and his bow and charged him for it. A few months later the charges were dropped. Prosecutor said they did not have a case against him. He had
deer corn and a
deer block out for bait. Now had he had something else out there such as apples, donut's, stale bread, or something that is normally used
for the purpose of attracting black bears I'm sure the outcome would have been different.
