There’s just one problem with this. Plugins exist for a very good reason: to add non-core functionality 1 to your site without hosing up the whole lot. Via “Without a plugin” considered dangerous | sabreuse
Domain registration is a different beast than it was a decade ago. What used to be faxes and phone calls is now all email.
A century ago, one of the world’s first hackers used Morse code insults to disrupt a public demo of Marconi’s wireless telegraph via Dot-dash-diss: The gentleman hacker's 1903 lulz – tech – 27 December 2011 – New Scientist.
You can add banners to plugin pages on the official WordPress repository!
How it works, and your unrealistic exceptions about it.