Who are these people?

[alanmcorcoran]

When I stumbled across this site, I was impressed by both the number of registered users and the rate at which they were growing. The stats on the bottom of the page show an impressive 6500 plus registered users and it seems to grow by ten or twelve a day.

However, in reality it seems that there's a core of about 25-50 posters and, after that, actual activity drops off precipitously. I leave the site open pretty much indefinitely in an IE7 tab, and when I take the occasional peek, I am often the only registered user.

None of this is particularly important, the content provided by the core users is well worthwhile. What I'm wondering is... who (or where) are the other 6400 registrants? Are they all aliases of spammers?

Just curious...