It is relevant, because it earned whatever trust it has gradually and through lots of trials. For the trust to evaporate would require a failure of the system or a shut down of the internet. The fact that some people don't trust it does not mean that bitcoin can lose the trust that it has acquired overnight. Of course it's all trust! But what can break it ?
Relevant to what? If there is no trust, there is no Bitcoin. You may not trust in the US dollar, but being a US citizen (for example), you must pay taxes in that currency (the same is true for other monies as well), so you have to get some dollars (whether you like it or not)...
We are talking about storage of value beyond what is needed to pay government and local needs.
When the USD collapses, the question of paying taxes in USD will go together with it.
If americans are lucky, they will be imposed a new currency and will be able to exchange their USD to buy some of it, losing at least 90% of their current purchasing power in the process. If they are not lucky, their entire savings will be wiped out.
I guess you can easily explain why the US dollar has been recently appreciating towards other major currencies
All major currencies of the western world will collapse in a few weeks or months, driven by the collapse of the USD. What they are doing relative to each other is meaningless at this stage of the collapse of the system. People who hold the strong belief that the system cannot break will be surprised very soon.
For the USD to appreciate against other currencies, all it takes is a higher than normal demand for USD. High demand for a currency can come from many sources, including an unwinding of USD denominated assets and positions outside the USA. The rise of the USD has been happening while commodities were going down very quickly. There are trillions of various forms of (mostly OTC) derivative instruments that are based on commodities and most of them all over the world are denominated in USD. The collapse in the energy and other commodity sector has triggered a silent derivatives counterparty bomb that we can’t see because of the intentional opacity of the OTC derivatives market. But you don’t have a 50% collapse in a key economic commodity like oil – a commodity which has $100’s of billions in OTC derivatives securities wrapped around it – without some kind of counterparty default tsunami that has been triggered. We are actually in the middle of a meltdown of the western financial system. The absurdity of the derivative exposure of all the players remains mostly hidden, but with the collapse of the greek economy and debt, the collapse of the energy and other commodities, it will very soon be acknowledged that the positions of each player CANNOT be unwounded without leaving everyone bankrupt. The game is literally up. People going into September without diversification away from FIAT and into directly held precious metals, bitcoin or sustainable estates will be left with nothing.
The shooting up of the USD in the past few months is a sign that the great unwinding has begun. After the peak of the USD index, the descent to 0 will be incredibly more sudden. Completely vertical in fact and happening in a matter of hours or days.
The debate of this post should be about what is an optimal ratio to hold between Bitcoin, Gold, Silver and land outside US. Not about when the USD will collapse.