Consensus on UTAU made using tts voices?

[15two]

I know using the voices of other's (without their permission) is considered taboo, and I think the same opinion is put on voices using tts (text to speech), but what is the consensus on voices using tts programs that allow for commercial use?

 

[Kiyoteru]

If the terms of use for a TTS permits sampling or resynthesis in third party software, that means it's permitted for UTAU. Commercial usage rights have nothing to do with it.