So this is not about using a search filter but using the “lifestyle expectation” as a filter.
So girls if you are getting lots of “just sex” messages or if you are attracting creeps try setting your SA profile to substantial or high.
The up side is you will likely get fewer asshats. The down side is you may also filter a real SD that doesn’t want to mess with it.
So check your visitors page regularly. If you see someone that might work but didn’t message you reach out to them. Be honest and tell them you use the lifestyle expectations to filter creeps out.
My Adventures as a Sugar Daddy 
I did this.. worked a charm!