Quora is a popular platform for online learning. It provides a space for informal communication between users and also for knowledge exchange. One of those spaces are Quora answers. 

Writing Quora answers are a new emerging subfield in technical writing that lets me stay creative. I can write in a conversational manner and share my personal thoughts. My clients are also reluctant to miss this opportunity to promote their brands on Quora.

Quora answers are becoming a part of the old school SEO — the link-building —  and may be anticipated as a kind of grey zone in online marketing. I do believe that as long as an answer has an added value for the asking person and delivers new knowledge and insights, it is totally fine to use them as a part of your content strategy.

I share my private opinion with a person in need. If some brand can profit from it, there is no crime in it.