I am of the mind that the new search does this pretty effectively, and that gaming it effectively through picks camping costs money to do, and is going to be prohibitively expensive at some point.
(You need 5 "no payment info on file" anonymous alts that don't currently have their profile listed in the new search)
Parcel off 16m², 64m², 128m² and a 512m² (increasing parcel sizes in case the new search doesn't list parcels under a certain size which I don't think anyone bothered trying).
Set each parcel for sale to one of the alts so that 4 of the alts own land and are the direct land "owner". Now list all 4 parcels in Search (I'd gladly donate the L$120 it costs

Have the 5th alt host an event somewhere a week from now - call it the "Let's see how easy it is to game the new search with alts" party

Wait a few days until everything is indexed and take a look at the results:
* the 512m² should list in places for sure, the smaller ones may or may not and it would be good to know
* if a parcel is listed in search, check to see if it imported the alt's profile into the new search
* check to see if the alt that created an event's profile got imported
If any of the above succeeded in pulling an alt's profile into the new search, their picks will count and you can game picks at virtually no cost with no upper limit to the amount of alts you can use for it.