You can go check my characters. I RP as Selwyn, Lyra, Lucius and Allura. There's no rule I can't have a character in The Order just because I have a couple of Death Eaters.
Look, I'm just used to RPing on forums where things make sense. I know you all just wanna have fun; I want to have fun too. But I want to have fun in the Harry Potter world, which for me means not ignoring the rules of the setting.
I wouldn't get on my other account and invade Grimmauld Place, because I know there's a fidelus charm on it, too. I know I'd have to get around the charm. But I also know that in Deathly Hallows, one of the Death Eaters was accidentally brought to Grimmauld Place when Hermione apparated there, so the charm can be breached.
The logical thing to do is to capture a Death Eater or stalk a Death Eater and grab on to them when they apparate, or to have someone go undercover and make friends with Narcissa since she's the secret keeper and she has the power to invite you in. Which would be even easier, since there's nobody playing Narcissa at the moment.
I don't object to the Order invading Malfoy Manor; I object to the fact that I thought ahead, did the smart thing and had my character put protections around it, which have now been rendered useless because "nothing's gonna work exactly as it should". The whole point of RPing is that there's a time line and your character has to interact with other characters. If you want to dictate how the entire world works so that you won't have to worry about setting up support threads that will make your plot line believable, then go write some fanfic. Or go set up a board exclusively for magical battles, because that seems to be your main aim here.
Just in case you need to know, I've written three threads in the lead up to the Death Eaters' next move. And there will be a lot more to come before we get down to work and actually hurt anyone, because if I just rush in and act like the rules of the universe don't apply, I feel like I'm ripping off every other person playing on this board.