People who say 'decimate' when something has been completely destroyed. To decimate something is to destroy one in ten, so it would still be 90% surviving.
I had a forum tiff (not this forum) with someone (a 'moderate' Tory, FWIW) who took issue and told me, back around 2015/16, that funding for Local Authorities had been 'decimated' by the Tory Government.
He was insisting I was wrong and exaggerating, and that it was nothing like that bad.
I literally showed him the official figures that detailed how LA funding had been slashed by actually over 10% and the c*nt still wouldn't have it, claiming that 'decimated' might once have meant losing one in ten, but nowadays it means generally devastated or destroyed.
The fucker just wouldn't have it that he was wrong.