Which may be why the Merlin attacked the Castle in Little Things ...
Except that the whole "
the Merlin was the perp" idea is just a theory. And honestly, a pretty weak one: it doesn't look like the Merlin's work, to me; it's just too clumsy, too overt. Like the car-bomb that got Murphy's Saturn, it... isn't part of his vernacular. If the Merlin wanted Harry dead, he's got MUCH better ways to do it.
... I actually think that because the Paranet was associated with Harry they will be persona non grata (or as Harry would translate “I don’t own a cheese grater!”) whilst there are certain things minor talents can do, teaching a potential wizard and the issues they might bring is another thing. Dealing with a gateway to the Never Never for example.
I don't think "the Paranet" is really even on the WC's radar.
At most, I think the WC are vaguely aware that the little "clubhouse" groups (such as the Ordo Lebes) are communicting a bit more. Remember, the Paranet largely uses the Internet, so they are inherently "wizard-resistant."
Harry called Carlos to "check up on" Elaine, who had previously been hired by the Ordo.
Harry then did his "Harry protects girls from Vamps" thing, stomping on another group of Vamps in the process (and doubtless alarming the WC tremendously; but it was an Accorded duel & Carlos participated,
and the Whamps ended up paying weregild so it looks very legal & aboveboard).
Elaine ended up administering the weregild; she was the one who "created" the Paranet.
If they started a school, I expect they'd be noticed sooner rather than later.
So, Elaine proactively contacts Carlos... "I'm helping the minor talents organize and train, adopting the kids who were orphaned by the White Court, etc. Can you take a look at this training-material on the Laws of Magic for me? We really don't want to run afoul of the wardens! Maybe you could even send wardens to do occasional trainings with us? Pretty please?"
And, being a full-on Wizard-level talent herself, she can filter the trainees, make sure no Warden ever encounters any trainees that the White Council would want to grab. But she can send a few strong-but-not-quite-WC-strong talents to Carlos for "testing."