These kinds of people exist in every crowd or community—people who are present in the community but have zero awareness about what the community is about. Usually, something different has attracted them to becoming members of this forum, and sometimes not only the knowledge about cryptocurrency or Bitcoin. Some people have joined the forum strictly with the intention to spam and join signature campaigns, others to learn and contribute, etc. Reasons differ; that is why you should not trust the knowledge of someone simply because they are from the forum; you should always verify.