Someone wrote, “What if, instead of passing your yahoo ID to grouply, you just set up a grouply account with a grouply email then as a user MANUALLY went to your yahoo account and made the grouply addy the default account address for whatever group you wanted.”
That would work just fine. It worked great for FreecycleFinder.org. I remember during the FcFinder ruckus some people saying things like, “This is just the beginning. Now that this concept has been brought to light, every huckster will be looking to make a buck on YG posting activity.” Sure enough, we saw the event of sploggers planting an account in a group and redirecting its postings to a blog with AdSense context-sensitive ads ringing the cash register for the blogger.
But the FcFinder approach you propose, which is elegantly simple, would not grant access to the entire archive, only to future postings. Data-mining and context/content analysis of long-term member activity and archive content would not be as richly endowed that way, making targeting of advertising less keen. (We have to consider Grouply’s business interests, its survival as a company, and all the money waiting to be made, according to Shal and Srihari.)
And, the current Grouply arrangement makes it easy for their subscribers to endow Grouply with the archives of ALL the groups where they hold membership, in a few simple clicks, as opposed to the member having to go open the back door to every one of their groups one by one. Mass aggregation is a very sophisticated business. Reportedly a couple million dollars are riding on this instance of it.