The title sums it up !!
Wikia blogs appear to be the in place to post spam adverts on Wikia !!
If you want to plug something not related to a Wiki or Wikia it appears to be OK to just post away. As no moderation/clean up appears to happen in this area other than removing some duplicate posts in staff blogs or the odd bit of abuse directed mainly at staff in the New Skin blogs !!.
Do you the community on Wikia think these spam blogs are acceptable here, as to me they drown out your attempts to publicise you 'own' wiki or discussions about Wikia such as the New skin and other changes that effect the community ?