A cpu coin needs to crush these cheap means to suck up all of the minting. CPU power is cheap for them to give out, but RAM still costs them. If people want to rape cpu coins with vps nodes and instances make them pay the price and have to splash on the most RAM as possible. It will actually increase the stability and price of the coin.
Fair point, but although increasing memory may help curb botnets (yet to be seen), it does not stop GPU/ASICs, which we consider to be a much larger threat to decentralized mining. GPU and ASIC farms have orders of magnitude more hashing power than botnets, which should be more on par with a modest size CPU-pool.
I personally do not think much can be done about botnets, which is why Heavycoin does not prioritize thwarting them over GPU/ASIC miners. Meanwhile, GPUs and ASICs are still able to mine memory-hard coins with astronomical advantage. Memory-hard is clearly not working.
We think it's time for a different approach.