This idea is pretty neat but I don't really understand how you detect your competition. Would they really register/login with an email based on their main domain and not use a throwable email or at least a personal one ?

Same for the media/influencer do they really use daily their work email to test applications/websites? When I was testing applications/sites most of the time I used a throwable emails first to check without fearing to be spammed later on my work email. But I'm not the target so maybe it makes sense for them?

Can we provide specific names you don't have to improve the list for everyone ?