Buy 𝑰𝒏𝒔𝒑𝒊𝒓𝒂𝒕𝒊𝒐𝒏 𝑷𝒐𝒊𝒏𝒕 a coffee

It's a friendly metaphor, not real coffee. Each "coffee" is $3 and you can buy as many you like.