It should also be pointed out that NRaas in particular has its own support mechanism. We aren't EA of course, but I wouldn't really say that their version of tech/game support, as provided by EA employees and those to whom they outsource the service by way of help functions, is anything worth writing home about unless you like being read to from scripts by help associates who don't really understand the game they are supporting. Customer support for things such as account issues might be different, on that front EA has a much better reputation.
But anyway, if an NRaas mod user wishes to find out if something they don't like that is happening with their games is attributable to the mods or if a different combination of mods/settings can make things better, we are quite approachable on the NRaas site. While Twallan has long since retired, our developer has been in charge of the mods for coming up on six years now, he is a professional programmer/coder, and there are others with such strong skill sets available to help over there.
And no, the mods do not cause abandoned social jigs. At least, not directly. They instead might increase players' awareness of them and they might push inactive sims in particular or those operating under their own autonomy to do social things more often that leave these annoying things behind, but they also provide the tools to get rid of them more efficiently than having to keep doing the evict, copy, bulldoze, replace, move back in Edit Town procedure, which while also effective can be much more disruptive to gameplay than flushing them out with MC.