I don't know about STO, but this could be it for the Dynaverse.
I've got three suspicions at the moment
a) something has changed with the monitor and its probes are breaking the list.
b) someone has found an exploit and is vandalising our lists just for fun/revenge.
c) A dynaverse server description is using a character string that is breaking the list.
The timing seems to coincide with monitor probes. The list is good for about ten minutes then goes blank. No word from Frey yet (email and PM sent).
Really I have nothing. I have no idea what broke the serverlists on friday and why they remain broken.
edit: I have tried a bunch of stuff and I cannot figure it out. My next thought is to restrict the server versions that can connect to a new version and release a new serverkit build version number to match thus eliminating all old server versions... oh but wait I can only do that for OP and and the rogue server could be EAW or SFC3... if there even is one. Dammit this sucks.
If someone has found an exploit for the directory servers I
might be able to fix OP but not EAW or SFC3. (for lack of source)