I was (trying to) writing the characters "鍋" and I couldn't write right, nothing special.

But I realised that the example shown the characters the exact way I wrote in the first place...so which part should I believe?

Here a screenshot: http://past.is/KxMQ

It's a difference in font. As I understand, both are OK, but it's very difficult for Skritter to know which way you are writing, so it forces you to do as shown.

This is even in the FAQ! http://www.skritter.com/faq#char_guo

In Taiwan, it's with the extra stroke, just like it currently is on Skritter. This is the proper traditional variant of 锅.

Another example of this is the character 骨. In Taiwan, the thing is on the right side and thus has a one more stroke than the way it's written in China.

My understanding:

Unicode assigns separate code points to traditional characters that are obviously different from the corresponding simplified version. Where there are only small differences, however, typically on a single Unicode point is assigned.

Apparently, Skritter cannot handle distinctions where there is only a single code point.

For internet browsing and various other applications, the easy workaround is to use a font with the preferred style.

The one with the box on the right is the traditional form. The one that sits on the left is something called 新字形. An explanation is given here: http://zh.wikipedia.org/wiki/新字形 . It's amazing to have something that is both 新 and traditional.

Using style sheet, it's possible to control exactly which font is used to display a character. So, the reason for not displaying the proper font is not because it's a technical impossibility. Rather, the large amount of manpower involved in setting it up, the anticipated problems the users will encounter when installing the required fonts into their devices are hindering it's implementation. And the most important reason is that there are not many users who really care about this problem.

Skritter uses both styles and the reason for it is explained in the research page.For me it would make lot more sense to pick one style and stay with it.

Thanks for your explanation!