SIGH! 
Why the FUD?
Everybody, if you haven't already, please read
this simple description of merged mining (MM). See also
the design that it's based on.
I find block that only meets BTC difficulty. I get BTC and SC.
No, you get only BTC. You base much of your argument on this misapprehension. Please go read up on MM and tell me if you still think I'm wrong.
All merged mining would do is skyrocket solidcoin difficulty above bitcoin difficulty, except taking a long, long time to do so.
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An increase of supply of that size will also drop sc price below ixcoin or even i0coin price! I do not support merged mining for any cryptocurrency - it simply doubles the chance of disaster.
I don't know where you get your numbers, but I can't see how a code change to accept MM would lead to a generation rate increase any more dramatic than what SC has already experienced. It would take a while before most of the BTC network adds SC. As CoinHunter is quick to point out, SC has handled hash rate swings well thus far.
Without merged mining, though, I can promise that SC will experience Namecoin-like hash rate swings based on price/difficulty versus BTC. StableCoin's improved retargeting algorithm would help, but I predict 95-99% hash rate decreases in a matter of minutes, much greater than the "400%" mentioned so often by CoinHunter.
Can anyone explain how merged mining would NOT drop the price down to 0?
Price has to do with perception, so it is not an easy call. But if you mean that MM would flood the market with SC, then I don't think so. Fortunately, Namecoin is set to test the question, if it ever reaches block 24,000, so we'll see who is right.
+1 Merged mining at this point only makes sense with namecoin to me.
I'm not sure what difference you see that makes MM right for one and not the other. If you mean SC should let Namecoin be the guinea pig, I see some wisdom in conservatism, yes. But long-term, there will be MM currencies, and the market will choose MM or non-MM, leaving the losing side to convert or wither.
this breaks one of the nicer to see features ie. the difficulty algorithm
No, merged mining does not link difficulties. It's quite clever. I'll wait while you read up on it.
Merged mining between these currencies will likely result in a "battle royale" where one will eventually come out on top plummeting the other to nothingness...
Exactly, but backwards. In the
absence of merged mining, as is happening to Namecoin, many miners will hop from currency to currency based on fluctuating price/difficulty ratios. This hurts both currencies by increasing opportunities for 51% attacks and messing with block generation rates--albeit less so thanks to SC's innovation in that area.
With merged mining, miner configurations remain stable (as in
StableCoin) and all currencies benefit from greater security.
if one or the other does not participate in merged mining that one would cease to exist rapidly because I can't see a case where miners wouldn't participate in merged mining to maximize profits among the several cryptocurrencies.
Quite so.
