Is it considered spam because of its substance or because it's repeated verbatim? E.g. if I take the same exact comment but paraphrase it every time I post it,

Is it considered spam because of its substance or because it's repeated verbatim? E.g. if I take the same exact comment but paraphrase it every time I post it, would that be ok? The reason I ask is because I see a few accounts post the same tired criticism of bitcoin over and over and see no reprisal for spam. I would be interested in understanding what the objective rule here is, since I checked the guidelines and could not find references to comment spam definition. Thanks.