From what Nicki has said on her regular vlogs it seems all Patreons get are some old photos of her and perhaps priority for Q&As, or maybe they get Patreon only Q&A sessions that we don't know about. N&C would probably give replies to their comments too, stans love a good old dose of parasocial dopamine. Her top tier is £18.50pm. I wonder if higher tiers are revealed only to Patreons. I'm sure someone said their top level was £150pm perhaps an ex-Patreon will spill the tea.