Don’t be pissed, anon. When those people will realize that XF made Gillian who she is now, that without this show she wouldn’t be there and that XF is the ONLY thing paying her bills, this fandom will have made a huge step.

No one forced Gillian to do anything, she’s free, and I’m sure we’ll have this same conversation when she signs for another season because with XF comes money and fame. If XF disappears, Gillian might do some other projects that will be more interesting acting-wise but nothing she’ll choose will have the same exposure. You just have to see what’s she’s working on besides XF.
I think everyone forgets that she’s not just an actress. She’s a business woman, and a pretty good one. So if XF is good for her career, she’ll jump in as long as it is. Taking easy big money from Fox half of the year and doing some smaller projects aside sounds like a good strategy at this point of her career. Except if you believe she has some big secret project to come. But I don’t think so…
Same goes to David, I think.