- spot-on is presently listed as the source code for goldbug at https://sourceforge.net/projects/goldbug/?source=navbar .  I do not see the source code for goldbug in the july 2013 version of spot-on.

- in july 2013, libspoton at a cursory glance appeared to be a small c library that used openssl and libgeoip.  I'm guessing its sole functionality was to save webpages to an encrypted database, but my guesses are usually immature.

- libspoton in 2013 didn't have the content I would expect for a messenger, but it doesn't appear to have code to harm the user in any way.