What is nonsense? Is it nonsense to assume you would not like any text buttons in Finder, Address Book, Mail?
What is nonsense is your suggestion that there should be not text based icons in iTunes becuase they don't appear in some other Apple software.
To answer another of your questions - why should it say "PING" when you don't use ping, there's probable a whole heap of tex.icons/images in software and in life generally that you personally do not use - so should all of these disappear as well?
Some people do use PING, which is a function of iTunes, this icon (the PING text) is to symbolise that this button calls up PING functionality. That is not adware.
Adware is software supported by adverts, you have paid for adverts for third party products and services. The PING icon highlighting a function of PING within the application from which PING is managed, is not adware by any definition.
Right, I've not actually seen a hint of Ping on Facebook or Twitter, no one I know appears to use it.
And most of them do indeed like music and have an iPod/iPhone...
lol - there's some logic. You don't see many mentions of apple on the main microsoft pages, does that mean that people don't use Apples products and services? Facebook and PING are two separate services that don't currently link to each other, so why would you be seeing links from on to the other?
Please don't call me a liar - you speak from your personal (cynical, impatient) experience, and I will speak from mine. My niece ollie lives in PING currently, having a bit of an obsession with jack johnson...
There is the fine difference between an arrow and a word. An arrow can be ignored as ornamental, a word much less so.
So, how would you feel about a non-removable Facebook button next to each highlighted name in Address Book? Both Address Book and iTunes are at their base database apps and Facebook is as free as Ping.
I'd happily live with it - what difference would it make? Again, if it annoyed me to distraction, I'd use alternative software.