I haven't had experience with BPD specifically, but I can definitely appreciate the double-aged nature with the populations I have worked with.

Client's that I've had with ASD, have had difficulties with technology as part of their diagnoses (e.g., restricted and repetitive behaviours) but have also found it as a way to mitigate some social communication deficits they may have had (e.g., more time to think and respond over technology than face to face).  Some limited inpatient experience I've had, technology was a huge source of leisure, but could also trigger symptoms (e.g., paranoid beliefs/delusions). In both these populations, there was a balance that was important.

I think more broadly, what I take away is that how something is being used is more important than it's use as a broad classification. If we can use technology in ways that focus and prioritize the beneficial aspects (such as connecting with those that are like-minded or have similar interests) and minimize our use for those that cause harm (such as exasperating symptoms), we can get the best of both worlds. I think that requires insight and reflection into which ways we use technology are beneficial/harmful and act accordingly.