Why do 95% of node runners refuse to undate their software?
In his analysis he stated that it takes 3 years for 95% of bitcoin node operators to update their software. I don't run a node, yet, exploring and checking up on what's like to run a node engrosses me. What could be the distraction? Do they forget?
You're taking the article too literally.
Saying that "
it takes 3years for 95% of the network to update" doesn't mean that only 5% of the nodes updated within those 3 years.
Based from the chart he created based from Bitnode's data, there are already a good percentage of nodes that updated to 26.0 and it's only been 2months since its release.
Just from eyeballing the provided chart, there's about 20%+ of the network that already using the latest version.
Others already stated the possible reasons of those who are late to update.