Greetings! I'm a long time casual editor. I'd do more than what I have, but it's hard to know what needs doing. Most of my edits have been a result of doing a search on my own and finding the results lacking in some way.
Everyone I know considers me to be a good proofreader. I've volunteered for many different online projects to do text editing and proofreading, and I have work experience proofreading professionally. So, if anyone wants me to look something over on here, I'll give it a shot and see how it goes.
General Thoughts:
I believe the Wikipedia: Manual of Style should be amended to permit the use of capitalization within tables. I would say title case, but given the nature of Wikipedia, a simplified version that capitalizes the first letter of every word, without any subset of exceptions, would be acceptable to avoid any potential disagreements.