I will compressed VC textures to half its original size. It saves 150-200MB of memory, helps me avoid OOM. Can I share it?

You can share your method of resizing them. But I would advice you NOT to share the textures themselves. They are copyrighted!

Its a nono for sharing. 

BTW, how is the quality after resizing? You see a big difference?

I'm don't see differences in quality, some texture could be reduced in half. You can compress using imagetool

The entirety of the Texture.VC folder is 46MB - how exactly do you think you're saving hundreds by compressing them? (they're already compressed)

6.8 mb