[noitpmeder]

It's pretty bad for usability for all downstream tooling. Grepping log files is immediately worse... Ingestion into pipelines (like ELK) is considerably degraded... I can imagine almost every other tool would be similarly degraded.

I think it's fine if the logs are going straight to stdout/stderr in a console. Any other destination (piped output, logfile) should default to no color.

[mcswell]

Grepping anything that has ANSI color codes would, I would think, be awful. Same for lots of other tools: sed, awk etc. So agreed, piped output should default to no color, and not just for the log file situation.