Yes, it's a waste of time. Unfortunately the people on the anti-decentralization and anti-privacy front use all means of manipulation. If their lies are not refuted, the public might be mislead into thinking that they are true. The problem is that many people - even within the community - are easily attracted to false promises (e.g. bigger blocks = more growth = more profits) and scared by absurd doomsday scenarios.

Remember when the XTCoin fud (spearheaded by Andresen and Hearn) started? People were screaming that if blocks get filled Bitcoin would collapse. A shiny extrapolation graphic was widely circulated, indicating an alarmingly red bitcoin death zone. Now we are past that alleged breaking point with zero negative impact - instead Bitcoin Core developers found an intelligent and resource-sensitive way to allow more growth.

ya.ya.yo!