I have not read everything here, so don't know if it's mentioned before, but in my pow, there is a clear answer to this in one PF part that's canon:
The BrokerHe's not a capsuleer, afaik, so how does he move about in multiple bodies and appearances? Easy; He's rich enough to have multiple non-capsuleer clones.
The difference that I've seen between a capsuleer and any normal baseline human is the ability to NOT be imprisoned in your own body upon leaving the pod. Anyone can be hooked into the pod. Only the select few found able to, can potentially avoid mindlock. These select few (I'm assuming this trait is found by genetic examening, I don't remember reading it anywhere) are those who can become capsuleers. Out of those who are found to be able and who are funded, (or pay themselves in some cases?) only the one's who don't fail or drop out during training (iirc the failure rate is very high) actually become full capsuleers.
So the only difference between a capsuleer clone and a normal one, besides who it belongs to, is the implants needed to simply connect to the pod, think plugs and holes ala The Matrix and such.
Still, nothing that I've seen says cloning is unavailable to the general public, only that it's cost prohibits all but the wealthy elite. How do these people get cloned? There is also the cronicle
One man to many that explains how people can change appearance and appear duplicates of others, though it primarely explains about jump-clones, iirc one belonging to a non-podder.
Buy clone. Have it updated. You get dead, you upload into it. In theory the old 'you' is dead and the new one emerges, fully aware up until the point where your memory was backed-up. Shame on you if you only back-up once a year... Regardless, I think of this as less a 'cheap cop-out' and more like a legit PF-backed tactic to allow yourself to do sometimes dumb, sometimes reckless stuff in person, in stations or on planets or wherever out of pod, and possibly 'survive' it. Ofc 'you' don't survive at all but your replacer will pick up where you left off last.
Now if 'you' are really still alive or whatever much depends on your view of what being human means. Are you yourself with a loss of, say, two days worth of memory? I'm sure your allies and employees will inform you of what you missed. Or are you a copy of a copy of a copy etc. of some guy who got killed at some point?
Capsuleers are quasi-immortal. If they take the proper steps to prevent it death will be a temporary annoyance at worst. The 'quasi' part comes from the fact that all this relies on technology. Tech that might fail, or be denied you one day, or possibly... sabotaged.
*EDIT* Now that I've read a bit more from the tread, I'll have to agree with Cosmo. The question is not really 'can we do this?' and more 'do I want to do this in regard to my character?' Also, like he said, as a plot-device PF supports it, so if you don't like others doing it, sadly that's something you have to live with.