Celia ran marketing operations in Manchester, UK, for 12 years before starting “Stack Audit” in 2020. Her comparisons of marketing and marketing-automation tools start with the metric: what the vendor’s counter counts, what it excludes, and whether two tools using the same word are counting the same thing. Add-ons are counted before seats, and a stack is priced for the team size that will actually use it — not the one in the pitch deck. Growth slang does not appear in her writing.