This is X-posted from Prosblogion. Let me be clear from the outset: the majority of work in analytic philosophy of religion (PoR) does not aim to proselytize, but is concerned with fairly technical topics, such as the possibility of creaturely free will in heaven, the compatibility of specific divine attributes, or the evidential problem of evil. But some portion of PoR is clearly aimed at convincing the reader that religious belief (usually, Christianity, given the demographics of academic philosophy) is reasonable. To this end, philosophers construct sophisticated arguments, for instance, to show that religious belief does not require evidence, that religious faith is also, or even primarily, a matter of practical rationality, that the evidence is overwhelmingly in favor of theism, etc. Plantinga and Swinburne are good examples.
Such philosophy of religion can be plausibly regarded as a form of proselytism--I'm using a wider term than the usual apologetics, as apologetics is the more narrow notion of systematically defending a particular religious position. But I'm not entirely happy with the term proselytism either, since I also think that some of this PoR is aimed at those people who have religious faith, but who are wavering, for instance, because others tell them their faith is not rational. So I'll settle for proselytism cum apologetics as a not entirely satisfactory term for this type of PoR. Is it acceptable for philosophers of religion to engage in proselytism/apologetics?