On https://pokercopilot.com/ I removed our About page for a couple of years, in an attempt to reduce our website to a sleek, conversion-obsessed landing page, with no unnecessary distractions or leaks. (“Conversion” here means getting a website visitor to download our 30-day trial.)
Then, per advice from Dave Collins (from Software Promotions) at last year’s Microconf Europe, I re-added an About page.
There was no measurable difference in conversions or sales with or without an About page.