Some months ago, I registered an expired domain and just made it a single paged one in order to be indexed and develop it later. The name is great, it is a 2 word meaningful domain that actually means something catchy. The thing is, that I noticed some spam going on towards my domain and the result is a CF of 10 and TF of 0. I don't have any competitors as of course my domain did not rank anywhere, just indexed. My question is why would someone do negative SEO to a harmless one paged website? Just to make the domain loose value? Seems so weird.