Anyway, it doesn't take very long for a genetic engineer to spend his life savings on Ferengi transport to their planet.
The genetic engineer is delighted. Some of his customers might be taking more discreet routes out.
Well, the genetic engineer is probably not a Federation spy, although it's possible he traded his way out of prison by agreeing to turn spy for them - not a characteristic tactic but not that unlikely. They can do background checks - they can do this really thoroughly with science-ethernet-connected crystal balls - and they can invite people to be mindread before they are offered access to anything sensitive?
Well, she doesn't want to let spies in and they might really try to come in but she also doesn't want to abuse mindreading, and besides, if they want a large population they can't realistically run all of them past Bella, who is the only person who'd be able to suss out a spy determined to hide.
Yep, that's the issue, and they wouldn't know as much about what to look for until they too have absorbed spy media.
...anything moving back in Valinor? Interplanar crystal balls are really hard, she is sorry she cannot send Fëanáro's parents cute pictures, but she's taking a bunch to send when she can...
"Sure, that makes sense, you want to work in parallel for anything best done that way if you have the labor available, but when the tasks themselves don't get handled better for it..."