Originally Posted by huejahfink
If there's significant stereo stuff going on in the lows and I think it might be problematic in certain scenarios then I will talk to the client about it.
This is exactly my approach. Unless it was creative decision, it should be addressed. It can cause problems in cutting lacquers, club sound systems, broadcast, etc. We're the final check, quality control, etc. The reason people come to us is usually to trust our ears, and our familiarity with our monitoring system. They want us to translate their creativity to listeners and identify any issues like this.
If someone can record and mix an entire project, there's a good chance they can clip an A/D converter, or bit torrent an Oxford limiter plugin. They're not spending their hard earned money to leave things alone, to not bring up topics based on technical morals, or to just make things loud.
It means a great deal when someone chooses you to work on their project. There needs to be open lines of communication about unintentional issues. It would be irresponsible as an ME not to bring this up, or just decide it's an issue you don't feel is your place to address.