Your "Your" vs. you're. "you're": Why the confusion?

I have seen many comments on different blogs and forums where English native speakers spelled you'reyou're as youryour. I'm not a native speaker, but I know and understand the difference between the two. Why is there a confusion?

My initial guess is that youryour and you'reyou're have similar pronunciation and because I carry some accent from my native language (Romanian) I can identify the difference better.

Edit (thanks Chris): The same can be asked for other homophones: there/their/they'rethere/their/they're, its/it'sits/it's.

Your vs. you're. Why the confusion?

I have seen many comments on different blogs and forums where English native speakers spelled you're as your. I'm not a native speaker, but I know and understand the difference between the two. Why is there a confusion?

My initial guess is that your and you're have similar pronunciation and because I carry some accent from my native language (Romanian) I can identify the difference better.

Edit (thanks Chris): The same can be asked for other homophones: there/their/they're, its/it's.

"Your" vs. "you're": Why the confusion?

I have seen many comments on different blogs and forums where English native speakers spelled you're as your. I'm not a native speaker, but I know and understand the difference between the two. Why is there a confusion?

My initial guess is that your and you're have similar pronunciation and because I carry some accent from my native language (Romanian) I can identify the difference better.

Edit (thanks Chris): The same can be asked for other homophones: there/their/they're, its/it's.