They’re not analogous because of the magnitudes involved. The “price” of putting a member on full mod whose common issues are with new topics is probably an order or magnitude greater than the “price” of putting a hijacker on full mod. In the former case, putting someone on mod who tends only to create “bad first posts.” you’d end up having to possibly approve dozens of appropriate replies just in order to catch the relatively few bad topics they start. Hence the separate category makes sense. In the latter case, putting a hijacker on mod has the relatively low price of having to approve the much smaller number of topics they presumably start. 

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J

Messages are the sole opinion of the author, especially the fishy ones.
My humanity is bound up in yours, for we can only be human together. - Desmond Tutu