Bollocks. Linux has not been marginalized. It is dominating the server market, embedded devices, and smartphones in the form of android.
whereas the Bitcoin Foundation will work to promote a cryptocurrency sometimes used for blackmarket activity.
Haven't you heard? The dollars are used for black market activities too.
Given that some core Bitcoin devs are also Linux kernel devs, they would not make the big mistake of saying that Linux is marginalized.
Please cite some examples. I can't come up with any, and this is intuitively false to me. Productive industries steamroll over bad actors and indiscretion. Railroads, gold-mining, and arguably social gaming were propelled by bad actors.
I really desire bitcointalk'ers to have some objective way to assess business quality when they consider how many percent per week return is a reasonable no-risk promise.
There's "PPCoin", a fork that adds "Proof of Stake" alongside "Proof of Work" in an attempt to reduce the energy consumption of the mining process.
There's others as well. Some bitcoin proponents consider these "scam" coins as they have limited use other than speculation, others consider them experiments in different approaches. But they do show that forking bitcoin is fairly easy.
You wouldn't need to try and duplicate an ecosystem. People with nodes on the network would "vote with their CPU power" to support the version they liked the best - so the best one would naturally get the most support.
I don't think so. A "better" Bitcoin fork that has no MtGox, no BitInstant, no BitPay, no blockexplorer, etc. would probably have very low adoption.
You could harvest a large number of new chain coins before you go public, and offer an exchange service, but that would involve you owning alot of new-chain bitcoin, which would be a concern to people switing in.