I have been on SSRIs, standard dosage, for last 3 years. I stopped it a month ago. I am sure that the individual experiences can vary, and this is just my personal opinion, and I am not a doctor by any chance, but what I noticed is that:
This medication has been impairing my capability to feel emotions, therefore preventing my recovery.
Of course, when one has so many emotions that is constantly on an emotional swing, or heavily depressed, then taking medication seems like a good idea to me. But once I have learned the basic calming and emotional balance skills, I should have gone off the med. I think that because of the medication I was not aware of being emotionally abused in my relationship. I was not aware of too many things that have been happening around me. I was getting dangerously to the point of burnout because of stress that I was not aware of. If someone's eyes have been sunburnt it makes sense to cover them with something for some time, but it is not a good idea on keep on walking with eyes covered - you may get hurt.
I think that such medication can be useful long term in diseases where there is a natural tendency to get better - like in depression. I think that there it's more about breaking the negative cycle and allowing the body to start healing itself. Having borderline means being downright screwed up, so letting the body go its natural direction is not getting anyone anywhere. And, at least for me, silencing emotions have left me without any "life navigation system".
I even started wondering, is it possible that while taking this medicationI was still affected by the emotions that I didn't feel? I have recently been looking into Vipassana meditation, discovered by Buddha, which (according to just one TED talk) says something along these lines: "emotions are reactions to the bodily sensations, which in turn are reactions to either external stimuli or thoughts". The idea of this meditation technique is to insert a kind of "interceptor" between the "body" and the "emotion" parts, so that first of all one can have a choice of not reacting with an emotion to a thought or a situation, second, one learns about the whole process and can learn to make adjustments of one's thoughts. From that point of view, is it possible that the medication just inserted a blocker between the "body" and the "emotion", so that the emotion has not been felt, but also no lessons have been learnt? Such model sounds very plausible to me..