I work with black bears(at times). Literally, I have been feet away from them. They are really impressive animals IMO.
They are highly intelligent. I have seen a sow drag a log out of the woods and ground out an electric fence guarding dumpsters.
To say that they arent a threat, well I think thats a generalization. Most arent, and most will run away. Thats what you want. You dont want them to have no fear of humans, or associate humans with food, or come between a mother and cub.
They all have to capability to wreck you if they so choose. That is not something to be taken lightly. I cant remember if it was a show I watched or information I got through work, but it said something to the effect of "a high percentage of black bear attacks are predatory in nature. Whereas most grizzly attacks are due to surprise or defense." You play dead with a grizz, chances are you may live. You play dead with a blackie, and you wont. I seem to recall that black bears kill more people than grizzlies, on average. Im gonna try to dig up that info.
Not meant in any way to offend or discredit. Its great you have them around, but there are precautions and knowledge you should be aware of.
Anyone interested can google "Fatal Bear attacks of the 2000's". Edited to add this, as it shows a decent comparison.