This is one of my favorite tricks for testing web apps. The only downside is getting your inbox blown up when the company runs an email blast, but it's nothing

This is one of my favorite tricks for testing web apps. The only downside is getting your inbox blown up when the company runs an email blast, but it's nothing a filter can't catch. I think these patterns are generally negative for most ecommerce companies (you've priced too low, you're signing up tons of low-LTV customers at huge CPA, etc.) and good for SaaS companies that can solicit feedback or otherwise monetize their "frequent triers".