While it may not be a scam in your opinion, it could be considered spam. Spam is not appreciated by the community and could be flagged or may result in action from the cheetah bot..

Some things that can be considered spam:

• Banner ads
• Referral links/codes
• Links to known scams, phishing sites, and other dangerous links
• Spamming with random, generic content

More Info: Abuse Guide - 2017.