An interesting point: BitMEX offers leverage, including up to x100. There is also a convenient demo version, which is great for beginners and testing strategies. I registered in 2019, and since the end of August 2020 — (note, just six years after BitMEX launched in 2014) — the exchange began conducting identity verification for traders before registration. So be prepared for verification. As for the complexity — I can't say. I was lucky to register earlier =)
