The specific encoder you use makes a HELL of a lot more difference than the codec/format. Other H.264 encoders don't come close to x264. If x265 doesn't get the same kind of open source development boost, x264 will continue to improve, and probably outperform the newer format, as proprietary codec developers just haven't shown themselves willing or able to do a good job of perceptual encoding, yet that's where the bulk of our non-pirated content comes from...
Wow ... just wow!
I'll assume by "proprietary codec developers" you actually mean developers who have closed source implementation of the encoder. In which case, the statement may not be completely unreasonable ie closed-source encoders have not kept pass with this open-source implementation due to less comphrensive (and less costly) implementation of the encoding tools.
The rest is complete rubbish though ...
So what if the bulk of non-pirated comes from closed source encoders ... what does that have to do x264 or x265 or H.265 development? Is this just a shot at closed-source software given you seem to be VERY pro-open source?
The specific encoder you use makes a HELL of a lot more difference than the codec/format. Other H.264 encoders don't come close to x264. If ... blah blah blah .. x264 will continue to improve, and probably outperform the newer format"
Do you understand that H.265 is essentially a superset of H.264? You know, as in H.264 + extensions? How is x264 going to out-perform x265 given it is a subset of the later?
Do you understand that x264 uses a superset of the encoder algorithms implemented by other encoders? So what you attribute is primarily due to codec and then codec parameters and then software optimisations.
You could have said "I hate standards .. I love open source ... I hope H.265 fails" ... much quicker and doesn't need any pretence of understanding video codecs.