I think you missunderstand the meaning of the word 'accept'. From merriam-webster dictionary:

I think that it is clear that to 'accept' something as payment you don't need to hold it afterwars. You are free to convert it to something else or use it in any other way you see fit. To give you some example, few people would argue that steam, google play or blizzard online store is not accepting euros because they convert it to dollars after the purchase.

Yes, we do accept payments in foreign currency if we are running international bussiness.

Accepting bitcoins doesn't mean that you stop taking other forms of payments so this is no valid downside for merchant who start to accept bitcoins in addition to existing forms of payments.

For example to stream windows only games from my basement server to lightweight linux-based HTPC in my living room.

Cloud services which use client-side encryption can store your private data securely. Mega.co.nz for example offers 50GB of storage space for free and they have support for linux, windows, mac nad android.

Reasonable limit would be 10 years initialy + 10 year extension if the creator wishes so. The best solution would be to abolish copyright completely and provide money for creators in some other way without artificial limits on content distribution. Current copyright doesn't help creators, it is tailored for the needs of distributors because it is a mean to control distribution. Creators don't need distribution limits (it is actualy bad for them as it lowers their exposure to potential audience), they need money.

Patent law is more complex and i think that the current model is not so bad, the problem is the patent office which is not competent in patent aplication review and juridical system which makes invalidation of bogus patents expensive and lengthy and which enables patent trolls to thrive.

Einsteins theory doesn't use gravity at all. It works with mass and energy which cause curved spacetime which then causes gravitational lensing. The dark matter is predicted by this effect because we can't detect enough normal matter to justify the level of light-bending we can observe. Dark matter is also predicted by several other observable phenomena like the speed galaxies rotate around each other or cosmic microwave background.

Please try to send the message and let us know how it worked. I think that you'll discover that your "illusion of freedom" is very far from actual reality.

What is so great about it? Isn't it just another government-issued currency?

Jitsi looks realy nice. I want to try it myself when i need videoconferencing later this year. There is also Jitsi videobridge which you can deploy on your server and use Jitsi meet web client to connect to it. Or you can use 3rd party maintained instalation of videobridge available at https://meet.jit.si/

If you understand networks and are not afraid to setup your own router from scratch, i recommend mikrotik router boards. For home use, i'd use something like RB951G-2HnD

Probably the same amount who knows how to configure NAT. Fortunately the routers manufacturers usualy take care of the configuration for them.

With IPv4 you have only one option - hide your network behind nat and be unreachable from internet.
With IPv6 you can choose between your network being reachable from internet and your network protected by firewall from outside connections.

I fail to see how IPv6 which gives you more freedom can be considered down-side from any reasonable point of view.

Our local Czech news reported yesterday about Putin saying that Ukrainian government is responsible for the accident because it happened in their territory. I wonder if it means that he has taken responsibility for all aircraft shootings which happened previously in the russian/soviet territory:)

We are talking about pseudoanonymity here, not anonymity. And we are talking about moderated discussion. I disagree that it is only usefull in special circumstances. Using real name is big security risk for anyone. Internet is vast and you never know what deranged individual will take interest in your person. If you provide your real name, you are opening yourself to several identity theft related attacks which can be very nasty. This is very old topic which was perfectly explored for example in this article Anonymity and privacy on the network from 1992.