Edit: Realized I should introduce myself (or fall into the same trap as the email!). I'm one of the co-founders of Crowdbooster. Thanks for the feedback Adam.

Edit: Realized I should introduce myself (or fall into the same trap as the email!). I'm one of the co-founders of Crowdbooster. Thanks for the feedback Adam. We will add a quick one or two sentence description of Crowdbooster to our invite email. Apologies for getting what seemed like an unsolicited email from a service you didn't remember signing up for (it has been about a month). Let us know if you have any questions or have run into any issues! We'll probably start A/B testing emails and tracking conversions on signups for opened emails. Does anyone have good recommendations on email A/B testing. We're using Sendgrid to send out these emails.