Your mileage may vary but we still meet more real people here. This place is far from perfect but it's still where the majority of real swingers are to be found in our area. We're not leaving and we're making the new system work. If we can actually find a better swinger site we'll try it but we haven't found it yet.
If you want to catch a fish you need to cast your bait where the fish are.
Don't know what the total member count is for SLS but forum users are a very small fraction of that number. The percentage of people complaining and threatening to leave versus the total head count of members is pretty minuscule. A few ticked-off members leaving or failing to recommend it to others isn't going to put this place out of business. Predictions of a mass exodus from this site aren't something we would bet our money on.

