You are correct, DMS does work in Chrome and we did say that in an email. I'm not challenging that, I assure you. The reason was, as I mentioned previously, that other browsers don't yet have that set of tools, but I expect they will, sooner than you might think. As they do, DMS will adapt and incorporate them, too, giving you more options for editing.
Were I you, in mid-project, I don't think I'd convert either, but I would tell my client he or she may wish to do so in a couple of months to take advantage of the new technology. But that's my perspective, and certainly I'm not telling you how to deal with your clients.
I assure you that I don't doubt what you're seeing. Our CEO uses a Macbook, too, and he's tenacious at checking for browser variances, and so far, you're the only one mentioning this particular issue, but that hardly means it doesn't exist. I concede it does, and trust you're not exaggerating in any manner. The problem is that I can't fix the code and don't think it is our code per se, but perhaps some variable in the browser.
I can also assure you I wasn't trying to be rude or condescending about the browser front and back end issue. Simply trying to point out that your statement earlier wasn't, in my opinion, necessarily correct.
To be clear about the warning, it will drop off your profile by the 22nd of this month. We don't want people using language in these forums that isn't acceptable to all, or may be offensive to some, no matter how frustrated, angry or upset a customer may be. While we're expected to be professional at all times, we in turn, expect our customers to maintain their composure, and realize this is a public forum. Frustrations are to be expected, and we're happy to help anyone deal with them, but when they start off using s**t and j***s I'm obligated to stop that for the sake of others who may read this or add to it if they have similar issues. Use of such language or demonstrations of anger only serve as a temporary relief, but hurt the feelings of others. So, in future, please refrain from such language and you'll get the best support possible.