You’re correct, current is RFC2822 (I think). The point, besides being a smartass, was that checking email address validity with just regexp is not a very good approach anyways. What you described makes much more sense, specially by verifying that the address is not just technically correct but that it actually belongs to the person filling the form.
they discover RegEx and try to use it for email input validation
It actually can be done: Mail::RFC822::Address: regexp-based address validation
It’s really simple:
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Move existing messages from gmail account to new one, set up a forwarding rule from gmail to your new address for everything, change accounts as they show up. Maybe a bit longer route, but far easier to swallow since you don’t need to go trough all the things in one go nor worry if you’ve missed something.
It’s not just the price. If you get excavators to your new chip factory plot today to start building foundations it’ll take several years until you get first chips out of the line after everything is calibrated and ready to go. By then you’ve thrown few hundred millions on the building, machines and all the physical stuff. Hired and trained workers, managed supply chains and built a system which is pretty expensive to keep running.
So, you’re betting quite a lot of money and time against that the market stays like it is for the next 10 years (give or take) to just break even. If the bubble bursts in 5 years you have incomplete factory without potential market and a metric shitload of debt on your company. And that’s the same odd you’re betting against when trying to raise funding. Venture capital understands this risk too pretty well and that’s why everyone and their dogs aren’t building chip factories right now.