Decent read if you can figure out the questions from the answers.. since answers are in english and questions are in chinese.
One important point by Andreas in ref to the blocksize limit increase is that he does not support it at this time because of increased issues with DDOS attacks.
right he says we need to wait for the fix of the sig verification process so its not quadratic but linear.
classic does take this problem into account, by adding some limit as to how complex a TX can be, but ya the way segwit fixes the problem ( making the process linear rather then quadratic ) is the better fix.
hindsight is always 20/20, and (as you often point out ) its fortunate we didnt rush and commit to simply bumping block limit.
anderson says it best here ... looking for the quote ...
The reason they have not been replaced is because the value of software maintenance and careful development is greater than the risk of full blocks at the moment.
everything this guy says is fucking brilliant really. the bit about security Vs flexibility, brilliant!