Language used to evolve slowly. Now it evolves much more quickly. Apart from the fact that new technology – of which there is more and more every week – spawns new terminology, trends are spread with lightning speed across the internet via social media. There is a temptation to rely on crowd-sourced reference works when trying to find out the correct word or correct usage, because they will be bang up-to-date. Unfortunately, in my own experience these are sometimes wrong or contain discussions by people whose expertise in the matter is not obvious.