Several people seem to be saying that DDoS isn't one attack, which is correct, but not particularly relevant. Many times the attacks are simpler today, because

Several people seem to be saying that DDoS isn't one attack, which is correct, but not particularly relevant. Many times the attacks are simpler today, because there's little need for sophistication. Previously many attacks used to use some form of multiplier, either for the traffic itself or the resources targeted. The reason the attacks are still viable is because little has happened to the Internet itself. We still have the same challenges we had 15 years ago. Some things are slowly getting better, but it's still fundamentally the same. Increase in overall bandwidth and vulnerabilities doesn't help either.