I agree. If you say "We currently have 100k active users, based on our models those customers will have a lifetime value of £1,000 each and we expect to triple

I agree. If you say "We currently have 100k active users, based on our models those customers will have a lifetime value of £1,000 each and we expect to triple our user base this year" There is one thing in that sentence which is a current fact which is the number of active users. Investors might disagree with the way you measure it but whichever way you do measure it better produce that number for real. Everything else is based on your models, expectations, and hopes. It's not a crime to be a crazy optimist but you're not entitled to your own facts.