I am probably reading different websites, but that is not what happens to me.

It is either

- full websites opens, maybe forcing me to resize but that's usually ok

- mobile webstite opens, which looks good and I can read the stuff as I intended

- mobile website opens and it is unusable because of stupid things (see: techchrunch and pagination)

maybe sometimes I have to click on "no, I don't want your app" pop-up, but it is never "you can't read it without the app".