I thought we were supposed to be blunt and honest on baby name threads? It's not at all rude to give an honest personal opinion of how a name comes across to you, if someone has asked for opinions.
This is a place where we can ask for, and receive, honest opinions, which you won't get in real life. It's where you can hear what some people may really be thinking behind the "oh that's nice".
This is where you can find out that actually, that some names will remind most people of a cat, or that the name has been top of the charts for 10 years, or that most people like the name you're thinking of.
I think it's disingenous to insist that nothing is pretentious or poncy. There are names that do sound to many people as if the chooser is trying too hard, even if subconsciously, to be unique/fashionable/impressive/trendy/individual. So it's unreasonable to pretend that the "try-hard" thing doesn't mean anything. If people mention it on here, it's only because they are letting you know that some people will see it that way.
You can either take the opinions on board and think actually you don't want to use a name that so many people find harsh/ugly/pretentious/frilly/poncy/try-hard/over-popular/dull or you can decide you still like it and use the name anyway. But don't blame people for giving honest answers on these threads - you asked for the opinions and you can take them or leave them.