[MuffinFlavored]

> but is bad practice

Says who/why?

"It's mean/I don't get a callout/the credit I deserve" is "bad practice"?

Why aren't you honored that your product was good enough for Google to absorb and build off of? I'd be super proud.

[ericpruitt]

I have to agree. I use non-copyleft licenses because I don't expect people using the code to give me anything in return. Removing your the header and attribution is wrong, but not collaborating? As was said in other comments, if that's what you want, dictate it in your license because there are plenty of -- and dare I so most -- people that use the MIT license that don't care.