I've been openly using a normal character shortly since the server opened and it isn't secret to anyone. I participate in PvM activities and help out newcomers when I have free time on that character as well. Which is actually a great way to test out your changes and content in actual party scenarios, it also helps you fish bugs and issues you wouldn't discover otherwise.
So far there hasn't been any issues and I haven't heard any complaints. Of course, you can't always know what others are saying at your back, especially when you don't even have mapspy enabled, like it happens everywhere else. If you're open about it and aren't doing anything shady, there will be less conspiracy theories brewing in the shadows.