Agreed.  Also these are features that can effectively be operated as a service without changing the protocol level.  I think rat4 is (once again) well sorted priorities-wise in focusing on newer and more effective/efficient ways of further securing the blockchain itself.  The less vulnerable the blockchain is, the less 'real' threat there is to the coin.

New flavor-of-the-week coins will come out often, in many cases they will steal marketshare and drop the value temporarily.  Major attacks, doublespend or otherwise, will potentially destroy the coin altogether.

The bottom line is that crypto currencies are already an extreme niche commodity/market.  That's obvious with the way money flows out of coins into the latest 'cool' coin, and then out of that coin as soon as there is an even newer or 'cooler' coin.  There just isn't that much new money coming in.  Out of that already small market - those that are like coinpredator are an even smaller minority.

Consider the reasons for large anonymous transactions (as micro-transactions requiring anonymity locally are better handled with just cash IMO):  money laundering, funding terrorism, large drug transactions, tax evasion, etc.  I'm definitely not a fan of governments (or any bureaucracies) but I'm not a supporter of those other actions either.  You can 'launder' your money (regardless of form) through multiple coins via exchanges... and while not invisible, if combined with paper wallets and mixing if you're really paranoid - it would take an army of analysts to trace everything.

And lets face it... if you're up against a force that has the resources and technology to track your money through multiple forms of cryptos/metals/fiat/etc. then you're up against a force that can simply call in a drone strike on your house and direct the media to call it a 'gas leak'.  

There's also the issue of it potentially being a double-edged sword in the fact that if you are a recipient of anonymous funds - and it's discovered - then it could become a case of circumstantial culpability in the case of legal action against you.  The governments of the world have often taken the stand (including in the US where it's unconstitutional) that you are guilty unless you can prove your innocence.  Removing that proof can work against you as well in the real world.