That's sadly the one issue with shipping
There will always be arguing, always people getting frustrated, and even eventually flamed, because there are always going to be people who can't accept others' opinions and will just take bits and pieces of what somebody says and ignore the main part of the post.
But I will always support Subaru and Luna, and whether or not I explain why or constantly argue my opinion will not show I adore the couple more or less, so no matter what happens, I support the couple with all my heart and I don't care what other people think. If they think it's stupid or that it's dumb for me to enjoy them, then they're just being narrow-minded jerks.
And that is all I have left to say on the subject.