I once edited a Wikipedia article on an Einstein paper to make it much more clear. It was subsequently reverted. I understand the need for brevity, but the doma

I once edited a Wikipedia article on an Einstein paper to make it much more clear. It was subsequently reverted. I understand the need for brevity, but the domain experts at Wikipedia revert many seemingly irrelevant edits. The edit I made was to explain how Einstein made the leap to E=mc^2 by including the step that showed how E=mv^2 for particles of a given velocity. Of course this is well known to every engineer and physicist, but the article on the proof was so hard to follow without it.