A tagging crisis creeps up on you.
It won’t happen suddenly or all at once. It will start with forgetting a single tag. You’ll figure it out soon enough and you’ll be lulled into a misleading sense of false security. “Everything is fine.”
It snowballs quickly from there… months after that, you’ll be beating your head against the desk. “What arcane code is this? Why would I create such ridiculous tags?”
You’ll become paranoid… contacts have tags you swear someone else put there.