Bevets is an infamous troll that has been doing this for years on other sites. We can indulge in the polite fiction that he's simply trying to promote discussion and let him be, but remember that it's just that: a fiction. Bevets is not interested in discussion or debate, he is not interested in providing useful information, and he is not interested, despite protestations otherwise, in others "attempt[ing] substantive responses to [his] arguments." He often drops his copy-and-paste spam non-sequiters and then leaves. At best--or maybe I should say at worst--he sticks around in a thread to provide more copy-and-paste spam. There is no real debate, only derailing.
Whether Bevets' links to his own site constitute a technical violation of the site policy is beside the point, at least in my mind. Bevets behavior is poison, and destroys opportunities for real, worthwhile discussion. If that doesn't get you banned, I don't know what will.