You tend to find it in several places, on the internet, chats, messages, sadly formal write-ups. The growing mistaken use of "am" in sentences instead of "I'm" is rampant.
You'd tend to find sentences such as: I like Buhari, but am not impressed. Am still wondering if I like his opponent too.
The above sentences are grammatically wrong. Instead: I like Buhari, but I'm not impressed.

The wrong use of such words was probably born out of the growing use of the Internet and social media where people want to type quickly. However, this should not be allowed to eat into our language use.
Happy new year ahead!

True. It's very common.

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