Here's the big money question, since I haven't used S3 - do you have any throttling control? Can you simply block the feedfetcher bot, or block repeated hits l

Here's the big money question, since I haven't used S3 - do you have any throttling control? Can you simply block the feedfetcher bot, or block repeated hits like this at all? It seems like S3 is a nightmare $$$ hole if there aren't some really robust tools to manage this sort of problem.