Would you date someone still in the closet ?

It's a very personal decision, some people would have troubles having to hide their relationship for at least a while, other people would be ok with it. Personally, I believe that if I love someone, I would respect their needs and give them their own times, and I would stay with them even if they're still in the closet, supporting them through everything. But there are no right or wrong choices, it's all about what your limits are and what you can or cannot endure.