I just have to chime in here to say that I think my area's Freecycle group is great. (Orange County, NY) As someone else wrote, we have a choice of receiving an email for every listing, receiving the Daily Digest with all listings for the day or not receiving any email.
Our moderators are fair and even-handed. Regularly, they post the mission of the group and see that the listings are in a standard format. It makes it all pretty efficient. And they solicit member's opinions via polls from time to time.
I've been able to give away lots of stuff to folks that were glad to get it. And being able to upload photos makes for clear understanding all around. I've used Craigslist also, but the respondents come from a wider area so some times the pickups have not been as quick. I take small things to our local charitable thrift shop.
As someone else mentioned, Goodwill is a bit picky and they get overwhelmed with donations. Their mission has nothing to do with keeing things out of the landfill.
So deerislesmile - I'd join the Bangor group, if I were you.