Gentlemen
There have been 2 other threads on bonding in recent days. What is this, divide and conquer?
Cashdrive
You asked about the legal position on outstanding bonds if one works for a company that goes into receivership. Just as Nightrider has said, most bonding agreements do have a clause or three that cover this eventuality. However, even if this were not the case, I do assure you that the receiver would be legally very ill advised to pursue pilots in such circumstances.
As to your question with regard to bonding for command upgrade, I am quite genuinely horrified to hear you speak of this. Are you suggesting that there are now employers out there who seek to do this? If so, I for one would be very pleased to see you name and shame them on this site.