"Browser Fingerprint"

I've cleared my cookies and changed IP, but I still get instantly banned, when creating a new Gmail/Reddit/Facebook/Twitter/Youtube account in place of a banned one. How do they even detect me?

What they don't tell you is what methods they use to identify you, without IP and cookies.

There are a few.
1. Your browser voluntarily tells any site operator its version, your OS version, hardware device, cache size, screen resolution, and countless other details (see https://amiunique.org/fp ).
2. If you manage to spoof fingerprint, a specially crafted JavaScript can still measure your browsers and hardware's parameters, like CPU id, GPU id, screen resolution and cache size, even if you manage to spoof the voluntarily provided browser info.
3. Site operators are known to share their user-id databases, so one you got identified at one place, you got identified everywhere.

Most larger sites ban TOR and its associated browser, so if one wants to evade a ban, he will have to use normal browser and modify it. Also, TOW browser can still be detected by operator, even without a TOR IP.

Best way is to install Qubes. Then the instructions are easy to follow https://www.qubes-os.org/doc/windows-vm/

If you do this prior to each attempt to make an account on these sites you mention, you will succeed.

>>2
If they detect you running a VM, that is instant ban on all accounts connected to your IP.

>>3
That's why you install Qubes first.

BTW, TOR browser also exposes your OS and hardware.
HTTP headers attributes
User agent 1.99% Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0

Javascript attributes
User agent 0.06% Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:60.0) Gecko/20100101 Firefox/60.0

So no wonder they catch all these paedophiles like fox catches chickens.

>>3
It used not to do that. They changed it only recently.
Anyway, just use tails or whonix either via a VM or Qubes.

Also, make sure to disable JS in tor browser.

>>7
Disabled JS is a fingerprint. Normies always have JS turned on. If you turn JS off, you are some dangerous psycho, who must be put on a watch list.

>>8
Most tor users have it disabled. Having it enabled is double fingerprint.