Journals are increasingly requesting that authors provide mandatory data availability statements. It doesn't necessarily mean that the data should be open, just

Journals are increasingly requesting that authors provide mandatory data availability statements. It doesn't necessarily mean that the data should be open, just that the authors have to declare if it is or not. Trouble is it's very difficult to prove a statement like "We intend to release our code and data as open source at <repository>", unless you hard-enforce that things are provided at publication time (and then you're assuming the reviewers will actually check, compile, etc.)