I used to joke that you had to supplement your Ramen with pop tarts but I checked the nutrition information on those recently and they also have 0% of your RDA of vitamin C. So, I guess you're down to foraging for rose hips or something. And if you're lucky maybe you can kill a squirrel with one of your textbooks...
I used to make pretty decent coin in UO selling scrolls, spellbooks and location runes. That and making portals for people. The introduction of the later crap -- PvE-only areas, item insurance that would allow you to bind your best items to you and gear that would affect your stats, all made the game significantly less fun. Not to mention the constant tinkering that was required to try to keep the game balanced in the face of all these changes, so that all the players wouldn't quit in droves. Which they pretty much did anyway.
2) I would fucking love for spammers to have to encrypt each message to each person on the list they're trying to send to. You want a spam filter, set your filter to reject unencrypted mail. Boom. Done. Even if they can automate the process, the additional computing and time requirement of encrypting each message to each person's key would substantially raise the cost of sending spam and lower the number of people a spammer could hit in a specific period of time. Since the encryption would (have to) happen the client machine, sending a substantial number of messages would require far more horsepower than just blasting a mail off to a list would.
This guy seems to want an objects actions to be more apparent just from looking at the object, but he chose two rather bad examples. His math formula is as likely to look like gobbledygook to a non-math person as the program is. And the playing card has a fundamental set of rules associated with it that you still have to learn. You look at an ace of spades and you know that's an ace of spades, you know how it ranks in a poker hand, that it can normally be high or low (11 or 1) in blackjack or in a poker hand. But none of these things are obvious by looking at the card. If a person who'd never played cards before looked at it, he wouldn't know anything about it, either.