A POT SB pushing early for a number is generally a red/yellow flag for me, depending on the context.
In general, it tells me she is looking for a fast hookup at high value and she's probably got 5 or 6 other POT SD's on the line at the same time. She'll pick the highest bidder and either ghost me (because I will NOT be the highest) or will put me on ice for a few days to a week while she works down her list.
That behavior doesn't bother me, if that's how she wants to work the sugar market. No judgement from me. But it's not what I'm looking for anyway, so I don't mind self-removing me from consideration.
The way I usually handle it is to ignore or deflect the question (as GaGa does) and move the discussion to text, or to a M&G. I will never quote a number or even details of what a typical meetup looks like, or frequency of meets will be on the site.
I've had SB's who tell me their last SD was providing $2k, $3K or more a month. But once I meet them and I turn on the authentic charm, they usually end up comfortable taking a much smaller PPM for $300-$400, meeting 2-3 times a month. (This is LA, after all.) But this does run the risk of pricing yourself out of range for a POT unicorn.
Last, thought: As I mentioned above, it's important to understand the context of why she asks so soon. If she says it comes from past baggage of low-ball offers or "time wasters" then it may be her method to filter poor opportunities. If it's just her GPS showing through, then knowing that upfront will save me the wasted effort.