The notion of Conventional Philosophy is a manner to indicate how often philosophical proposals become lost and then commandeered or recouped for a semantic project to which such proposals are inherently foreign. Even while creative application is permitted, the issue is less about use than it is about the theoretical and intensional argumentation that such work not being presently misused, which is to say, not misunderstood.
This noted methodological default has been incorporated into philosophical works which make notice of this general academic “flaw”, as we see in the theoretical examples of Lyotard (The Differend) and Badiou (Being and Event), to name only two. These projects serve to establish such commandeering as a methodological maxim thus theoretically permitted, ironically, while themselves are victim of the same kind of ‘semantic kidnapping’. Such ‘mistake’ is the theoretical basis of the subject of ideology.
This ideo-semantic ‘theft’ is epistemological violence. It is routinely exemplified (justified) in Derrida’s ‘trace/erase’ and was first noted in an attempt for a preemptive effort in Wittgenstein’s ‘passing over in silence’. Of course, we can see now that the passing over was not understood nor permitted as the “ism-imation” developed into the subsequent ideological platforms as a furthering of itself, which is to say, the conventional orientation upon things.
Likewise, we see in Deleuze and Guattari an incorporation of such ideological coup d’etat of otherwise true insights of Being in their Anti-Oedipus. There they bring the authentic Being under this certain conventional power as they describe how such power works to subvert, what we could call, Hegelian history, but likewise Hurserlian intention. This is to say that intentionality and authenticity is ripped from its moorings for the sake of the conventional ideological project: the Uber mensch is made to return to his mountain and wait for another awakening, all the while being used for a furthering of an institutional myopia (consolidation of power).
…And this is less a condemnation than it is a realization of the actual dynamics of reality itself in as much as polemical forces exist throughout all cultural semantic.