Why in the world would people name their children Abcde, Neveah, and other over the top names?

Because they like so. It's called, individual preference, personal choice, and own business.

And i don't really think there's anything such a "top name" , who qualified to clarify such matter ?

People can be idiots. How does one rationalize naming a child so capriciously as to sentence a baby to a lifetime of correcting others, or being mocked by them? That's a conversation I'd like to sit in on. That said, I recently met a delightful young lad named Chunk -his given name- and the odd moniker was particularly befitting to him. I surmise that in some cases, the kid grows into a name.

'Nevaeh', I "get", it's heaven spelled backward; it's a lovely thought, and its pretty to say.

"Apotaleaholla" nickname Pot.

I guess they like those names.  Personally, I wouldn't want to saddle my child with a name no one can spell or pronounce.