Can Screen Protectors affect the iPhone 4's screen when taken off?

[Khryz]

I have someone from another forum claiming that using a screen protector will permanently affect the screen of the iPhone 4 were they to choose to remove it and go naked. Affecting it's "beauty" and "smoothness".

Is this BS?

 

[boshii]

no it won't affect it

 

[Givmeabrek]

It's rare but some have had issues with the protector damaging the oleophobic coating.

 

[Macnator]

Hmm I don't think so. I've never removed a screen protector before though.

One thing though, on the iPhone 4 don't use an anti-glare screen film because it makes the screen have a grainy effect. I had one on my 3GS (sold my 3GS) and it caused everything to be grainy. Like looking at sand. I'm not going to apply a screen protector on my iPhone 4.

Slightly off topic but yea.

 

[Khryz]

It's rare but some have had issues with the protector damaging the oleophobic coating.

How can you tell if this happens? And under what circumstances?