My wife used to use a coffee mug at work with a rainbow as she simply liked rainbows. A man came to her one day and praised her for being so open to the gay community. She was confused but not hostile and told me about this that evening. I broke the news to her that she was being seen as a faghag. That mug made its way home the next night.

She liked that mug for the real reason of rainbows. The co-opt ruined that.