I think that's true to an extent, but its NOT a universal truism. (The myth of the "Fickle Gay Man" is probably about as valid as any of its counterpart theories.)
Speaking for myself, I've been a fan of Derek's for quite some time. While initaly I fell for the handsome exterior, I soon found myself digging the entire package.
When the pandemic and his crisis hit; I still found myself supporting him and hoping for a return. (Does this mean I paid for his OF every month? Absolutely not. $25 is pricy for little to no updates in weeks!)
But since his return, I find the attraction still there, and more, I admire him for putting himself out there knowing that former fans would judge him! I find NewDerek to be just as sexy and charming as ever, even if his looks have changed a bit. (And I confess, not big on tatts, but Derek's totally works for me!)