I'd think it would be wise to get some sort of p2p pool going with smart mining. The chances of finding a block solo with a small hash rate are such that people may be tempted not to bother.
The whole point of smart mining is that it isn't something people bother with at all. It just happens, and it is unobtrusive enough there is no reason for people to turn it off. It's just part of how the software works, like nearly every p2p system in existence with the exception of bitcoin.
Pool or no pool, a single computer will yield next to nothing and there is no reason for people, individually, to bother. This is not about "being a miner" it is about people who aren't miners doing mining.
@smooth i think you are right about that everybody should mine and if that would be the case they wouldn't / shouldn't really care.
neverthless i hope for a p2pool implementation (best would be directly inside reference client) as i have the hope that it could lead to more and smaller poolers.
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I mine with a single quadcore CPU and Radeon 7970 - probably generates 1 XMR every 2 days and costs me more than it would to buy them. Just like running SETI@Home or other distributed computing projects, not all actions need be profit motivated although I acknowledge that the network effects are significantly higher for those that are.