Actually, I'd disagree that it should count as continuing ed. Does sitting around the lunch table discussing something related to engineering count as continuing ed? I would equate the learning experience to be the same. If so, then practically every discussion you have could be considered continuing ed. Pretty sure this isn't the intent.
I don't mean to negate the quality of the eng-tips website but I just don't think it qualifies as continuing ed.
From the perspective of formality, I would also be cautious. If I remember correctly some states require a "list of attendees" to be kept by the host of the continuing ed session so that records can be verified. At least, when we were hosting professional development seminars, this was the instruction we were given.
Yes, it's on the honor system. But I think time spent surfing a bulletin board could be a gray area at best, deceptive at worst.
PE, SE
Eastern United States
"If a builder builds a house for someone, and does not construct it properly, and the house which he built falls in and kills its owner, then that builder shall be put to death!"
~Code of Hammurabi