My partner, Ryan, and I (he's on the right in my profile photo) celebrated our sixth anniversary at WDW during Pop Warner week last month. I called to get our anniversary celebration noted in our reservation. We've never had a negative reaction to our couplehood at WDW (or DLR) from CMs, and if any guest has ever not approved, we haven't noticed either. Though I should say, I often wear my yarmulke in the parks and Ryan and I are a lot more attuned to catching that patented "Oh my God are you a Jew?" stare at the top of my head, so we probably wouldn't so much notice casual homophobia.
Last month, we got nice enough "Happy Anniversary" greetings from front desk CMs when we had reason to visit the front desk at our resort (CSR.) However, we had two unexpectedly truly magical experiences. At DHS we were wearing our anniversary pins, and our waitress at 50's Prime Time Cafe fawned over us and brought us champagne to celebrate. And at Epcot one evening--and this is without any buttons or notice of our anniversary or couplehood--a Photopass photographer deliberately posed us very romantically holding hands and gazing at Spaceship Earth. Both moments were really nice and we knew we were being treated in both of those moments equal to how any heterosexual couple might have been treated. Of course, that's one of the reasons we go to Disney in the first place.