This is a generalization implying that the impression most posters have regarding post therapy friendships is incorrect. There may not be an APA guideline about it, but most therapists have such policies in place anyway and for good reason. The reality is that things can go wrong more often than not, and policies are created based on that fact. Many clients would put too much stock into this idea and things could suddenly go very wrong (as every person's expectation is different). If there is an exception to the rule then there is nothing wrong with that, but shouldnt be considered the norm. True friendships are often unexpected or pleasant surprises, not something we fantasize about and long for. And I thinks its worth addressing that many patients are not at all equipped to deal with the possible fall out if something doen't go as expected, especially those with personality disorders and attachment issues. This can actually create a very dangerous situation and shouldn't be minimized.