Yes, you are right. But I really can not find a proper word to describe this project.
CovenantForum just stores all the data in CovenantSQL which is a database use blockchain to sync "binlog". CovenantForum also stores the pictures in database as blob.
P2P would have been an acceptable term at some point.
from your description is a append log blockchain then. maybe missing one other word for the participants benefit, token based?
"decentralized" today is like saying "digital" in the 80s