For discussion around spam posts, such as appropriate etiquette, actions to take and what qualifies as spam

Spam defined on Stack Exchange is a post which:

Exists only to promote a product or service, does not disclose the author's affiliation.

Such posts do not belong on the site or the network and so are removed. Any user with 15 reputation or more may flag a post as spam. If a post receives 6 spam flags, it is deleted and locked by Community

Questions with this tag should be discussing spam on the site, such as discussing how to appropriately handle spam posts, raising attention to spamming behaviour or asking for tools to help combat spam.

Note that you should raise a custom moderator flag and explain the situation if you notice a pattern of spam, rather than addressing it on meta. If no action is taken as a result of that flag, approaching the topic on meta is appropriate.