I think that it's important to provide this list, as it provides members with a fuller range of options and information. But I'm not too sure what else we could do to improve it.
I guess we could make a GMATClub vocabulary workbook with pictures, sentences, and practice problems (multiple choice, fill in the blank). Such a project might be somewhat helpful for those whose first language wasn't English.
Here's an example. I used this book for studying upper-level Japanese vocabulary. Just click on the book image and scroll down a bit to see my idea.
https://www.amazon.co.jp/%E6%97%A5%E6%9C ... pd_sim_b_1And now for negative side. This project would require many people and a very long time. Plus, English vocabulary books are already available. If someone needed that much help with English, then it would be better to study those resources and perhaps even enroll in a language course. My idea is probably unrealistic, but it's all I have at the moment.