Regarding the SegWit issue, please see also the links in a comment on Part 1 of my recent blog series on extant ledger consensus systems. If you haven’t read all my recent posts over at bitcointalk.org as user @anunymint (with ‘u’ instead of ‘o’), then I suggest taking a look.
First of all, I don’t expect any SegWit theft until the booty piles up and I would presume they would like to short from nosebleed ATHs, so the timing might be early next year if Bitcoin is over $30,000 or so (possibly as high as $70,000).
Also I can’t be 100% certain such an attack will occur. It’s just a risk that has to be weighed and I don’t think it’s correct to dismiss it as an irrelevant risk as many Bitcoiners seem to want to do (maybe at their peril).
I don’t know how to obtain BTC without any SegWit lineage pollution. I don’t even know if there’s a tool to check UTXO for that. My plan is to sell all my BTC at the new ATHs and get out and wait for the dust to settle. I do expect another cryptowinter after we set new ATHs above $30,000. But no one can have perfect performance on predicting the future, so I could of course be wrong about this issue and/or timing. Keep that in mind. Also the Trilema dude seems to think that mixing SegWit tainted UTXO with non-tainted would be sufficient to protect it. I’m not so sure about that.
Unfortunately I don’t have the free time explain everything with a whiteboard in a video as would probably really be required to help everyone understand fully some of the technological points I make. Also I would hope that my writings would receive more peer review from other experts to find any mistakes I may have. I do try my best to not have mistakes. But we’re human, not perfect.
Thanks I am trying to present what I think is a logical rationalization of the reality as I discern it to be. That doesn’t mean I am correct or that there’s not other valid perspectives.