In the docs, referring to the email address you can optionally fill out in the game settings, it mentions that it will be used to uniquely identify the author of the levels. From this, are we to surmise that, if we fill in the email address field before importing levels, even if it's a new set of .player data, they will be recognised as our own, without the bother of having to mess with editing rights? I'm guessing no, because it wouldn't exactly be secure.
The point being, it would sure be nice to have some way (a password, something) to avoid having to mess with editing rights, or use hold copying workarounds to continue working on our own holds, if we haven't maintained a .player file between installs, or if some holds were developed under different holds, with different sets of player data.
Or perhaps this is just a self created problem, and when the final release comes about, people won't be deleting their player data, and will just performing a normal upgrade install between builds, and noone will be lazy, and the problem will go away
