I will make four comments here. They are my own views:
1) walking_x has stated that his work is original, or acknowledged, where appropriate (I have to believe him). It is HIS work, so he can do as he likes with it. I would like to see it go open source, but that is his choice. I would, however, ask him to take steps to make sure that the source is made available to the OS/2 (eCS) community, if he decides to quit work on it, or if something unforeseen happens, and he cannot continue. We can't afford to lose such important work.
2) It has been my experience, that eCoSoft is producing software, for profit. Most of what has been made available, for free, was paid for by Mensys. It does not make sense for a "for profit" company to open source their work. I won't comment on the quality of their work.
The market will do that.
3) OS/4 is a "problem". I don't know the details, but I have heard that the OS/4 kernel is a (illegally) disassembled OS2 kernel, from IBM, rearranged in some way to make it easier to modify (which hasn't happened yet, AFAIK, and please correct me if I am wrong). I have looked at it a few times, and found no benefit to using it. Now, it seems that they have added a version of ACPI. Whether that is original work, or not, I don't know (I doubt it). The OS/4 loader part is probably necessary to be able to load the kernel, and it seems that walking_x is probably the original author of it.
4) I note that the Russian approach (generally, not always) seems to be to produce products of mediocre quality, and they don't always respect other people's rights (copyrights). That may be part of the reason why they don't want to get involved with GPL, or other open source licensing. It is probably a result of their history, and the fact that their government doesn't do much to protect individual, or corporate, rights. I have noted a few comments about "large capitalist entities taking their work, for their own benefit". There seems to be no concern about taking something from those same entities, or individuals. I think the Russians need a change in government, and they need to look in the mirror to find the source of their problems. An attitude shift is definitely required, for them to get along with most of the rest of the world.