Bitcoin required no marketing as far as I could remember, only businesses built on the Bitcoin chain might need adverts to get clients and investors. This was my answer to a Twitter poll on whether crypto project needs marketing or not.
Most newer Alt/projects are making the mistake of Marketing themselves, of course its not a bad idea because any larger stakeholder and investors might have a change of mind in a project without a marketing plan, hence every new project wants to get a quick media and mainstream attention which is why most of these projects do not live up to their expectations and potentials.
I say this in support of a no marketing approach just like I'll like to agree with a marketable one. I agree with a no promotion technique considering Bitcoin as an example, if and when Bitcoin fails to deliver, no one, or I say no marketing agency will be held responsible because it was a project, a token that promoted itself and made itself known to the world. Maybe with some tiny helps from hypers and paid publicists, but it has proved with time that its actually worth the mainstream media and investors hypes.
So I think its possible for other Alts to not waste millions of dollars on marketing which might later become a bad debt, like some popular tokens that were bailed out of bankruptcy and some others who cease to exist no more today. Now imagine how much investors have lost in the tokens and projects that have rendered redundant whether by bad policies, bad governance, greed of larger investors and maybe a poor road map, marketing such tokens in the beginning might seems like a perfect idea till legal claims starts looming by investors who trusted the projects from marketing strategy and staked largely in the token.
Also, consider that a Token with full potential and that solves real life problems like Bitcoin will market itself, don't get me wrong, BTC has its own short comings in terms of protocols and Governance which has resulted into several forks, but that never affected its economy, in fact it somewhat boosted it. If every project could spend that amount needed on marketing and promos on scalability and working economy plus even distributed values to holders, trust me, there will be little or no need for marketing any cryptocurrency.
PS- This post is a response to a debate about marketing or not marketing a crypto/Alt, its in no way a business view on this said topic just my points of view.