But you can change the algorithm on the go. You do not need to kill the coin, you just need to modify the code. Many coins algorithm changed, but these changes do not result in the loss of previously mined coins.

Depends on your hash rate.  My suggestion is to leave it alone and check your miners to see what the vardiff switched it to.  Then set your miners to that value.

M

So, I'll chime in on a few of the recent posts/questions...

We seem to always be mining coin X.  The way this is shown on the website is a bit misleading currently, and is scheduled for an update.  This is because we mine multiple coins at the same time, but the "currently mining" box can only show one.  So, while we've actually been mining coin X, its not the only one.  (And you'd think we have an agenda seeing as the website always displays either DOPE or POT coins.)  So, for the time being, you can check out the coins page to see all the coins being mined at any given time (highlighted in green).  Our API will also be exposing a getpoolstats method which will show the specific coins being mined, as well as the percentage hashrate being directed to them.

Yes, our payout rate yesterday appeared to be about .004, which certainly isn't ideal, but it was about the same as the other major switching pools.  Almost exactly the same as clever, waffle, etc, actually.  So I'm not sure why there are statements like 'other pools are doing better than us'.  Further to this, we (unfortunately) had a bit of a clerical slipup yesterday which caused us to mine SPA coin when we intended to remove it (due to its hard fork switching to scrypt-n).  Had this error not occurred, I suspect we would have done a far sight better.
As I've said before, we're working on providing a running list of daily profitability for ease of comparison.  This is a high priority for me, as it will help clarify some concerns and conversations out there.  Its taken longer than hoped due to recent events, so to help give a bit of data to work with, I did post the past few days performance on our site.

Finally, to answer iru786's question, yes we pay old balances after there has been no activity for a while.  However, we also are happy to make payments upon request.  Ideally we would like to have a 'pay me now' button on the website, but with the chance for abuse, especially given the recent spike in unfriendly traffic, we've yet been able to come up with a comfortable way to achieve this.  I'm certainly open to suggestions on this topic, btw.