I don't mind "recycled names" - I never really did for a long time, as I get that they're all different ponies, with the same names (even if they reused the name "because it worked before" or whatever, like it was a marketable name), but also because I've tried naming my own ponies, and some of the names I came up with turned out to be the names of canon ponies.
I actually always liked that they reused certain names over the years. I felt it gave a sense of familiarity, like the older ponies hadn't been forgotten. Even back when I first got online in the late '90s/early '00s I thought the collector community made too much of a deal of it.
Even less comprehensible when it's people in the UK who grew up with those other names.
In Sweden we had the UK release for most of our ponies, so we had those names too. I remember one Swedish collector saying something along the lines of "I used to call this pony Sailaway when I was kid, but when I got online I learned her name was actually Hula Hula", completely unaware the pony was released under a different name here. As if "Sailaway" was just something she had dreamt up as a kid. (Very unlikely for a Swedish kid to come up with that name!

)
My unpopular opinion would probably be that even though I grew up with the UK names (the ones I knew anyway), I still tend to prefer the US names for most of the part.

(But the Tropical Ponies might be the one set I'll make an exception for.)