I never said they're bad. I'm saying that not very long ago, full stack means from system security, administration, being proficient with databases, backend and frontend development, and at least a couple languages under the belt.

These days it just means frontend and backend, in the same language, often the same framework.

The same term that was used to identify senior generalist engineers with extensive experience in the field, these days is used for any junior JS dev with a couple years of experience under their belt. Not their fault, it's the recruiters fault for appropriating the incorrect label instead of creating a new one.