I think I already know the results of this poll, but I wanted to ask anyway.
So, the situation is we have a 2355 members in our database. Now, I was proud of this number, but I'm afraid it doesn't mean shit because:
1) For a long time there, we got spambots.
2) Denied applications counted in the member count.
Also, I've been thinking about having major site announcements, contests, and such announced through email as well (for those who have the option enabled). No, I'm not going to spam you, and we'll talk about it later in the site's progression. But, I'm not going to do it if we have 2355 email addresses, most of which belong to spambots :)
Another problem with the way things are now - all accounts became activated during the conversion, and all applications were lost. So it wont be easy to sort through spambots or not. Also, if a spambot decided to try logging into the site with its old account information, it might be able to if sophisticated enough (they'd still need to re-activate their email address).
The con side is anyone looking for other dragons of a small member count wont be able to find much. They may lose contact with old friends, or not find dragons in their area, or such. And that is something we do offer - a history. Deleting all old accounts means deleting a good segment of the community's history. Posts will remain, with name of the member displayed, but the deleted poster's profile will be deleted so you wont have any information on him or be able to search the threads they participated in quite so easily.
So... the call is up to you all. If you like the option to delete old members that never come to the site anymore, then let me know how long you think we should wait until we qualify them for deletion (I think 1 year is good, but can do an initial purge of anyone who hasn't signed back into the new site.).