would be nice to show examples derived from real use cases

[timotheecour]

would be nice to show examples derived from real use cases to see where it works and where it doesn't yet work;

eg with no imports:
https://github.com/BVLC/caffe/blob/master/src/caffe/proto/caffe.proto

more complex eg with imports:
https://github.com/tensorflow/tensorflow/blob/master/tensorflow/core/framework/graph.proto

eg: loading from prototxt text format:
https://github.com/BVLC/caffe/blob/master/models/bvlc_reference_caffenet/solver.prototxt

eg: loading from proto wire format:
...

[denizzzka]

loading from prototxt text format

what for? is it working somewhere?

[timotheecour]

if you're asking whether protocol buffer text format is used, yes it used extensively in companies that use protocol buffers; [that file provides such an example].
Use cases: conveniently define protos in a human readable way, eg in tests, when writing configuration, as a replacement for command line flags (1 flag as proto ascii format instead of multiple command line flags)

[denizzzka]

In my opinion this vicious practice must remain the problem of these companies

[timotheecour]

In my opinion this vicious practice must remain the problem of these companies

Care to elaborate? Which part of it is nasty?
If google has a strong use case for it, I'm sure others have as well.