A few things:
Firstly, that particular gutter rag you're linking to is not a source of journalistic integrity. You might as well just ask Rupert Murdoch what he thinks directly.
Secondly, any problems with Tether and Bitfinex are precisely that. Problems with those things and not problems with Bitcoin. Tether and Bitfinex could both disappear tomorrow and Bitcoin would continue to churn out blocks and function as normal.
Thirdly, people manipulating the price is nothing new. To be blunt, who honestly cares about people who are waiting for the fiat price to skyrocket? They're not overly important in the grand scheme of things. None of that hollow gambling detracts from Bitcoin's resilience, security, freedom and utility. Contrary to popular belief, Bitcoin was not designed as a tool for speculation. If you think it was, you're missing out.
And finally, the derivatives market is currently the biggest monetary crime of all time and you're frankly gormless if you can't recognise that.
1) I agree, I have to work further with this lead.
2) You have a lot of merit, You know very well, how things are linked and how much BTC can be manipulated via change platvorms.
3) Price manipulation combined with this easiness-anonymousness-amount is quite extraordinary. I dont know why BTC was created, but I know, how BTC mining was created. As a pyramid.