You mean "the worst", right?
It's time consuming and the odds are completely against you. A 1:100 chance for shako that's worth less then pul after 2 months isn't very encouraging.
The best way to get rich in diablo - and world - is to use intelligence instead of doing mindless labor with stable, yet low rewards. In Diablo 2, that can be accomplished by trade. My friend is the best example - once he gets a simple pul or um, he starts trading and he's already at 3-4 ist mark at the end of the day. He knows what to buy and what to sell. What he does is 100% legit, no botting, no hacking, no duping - just wisdom and intelligence. He moves to HRs quickly and in much shorter and arguably less boring way than MFing.
I consider MFing the worst part of the game: most boring, most useless, and with low profit-to-effort ratio. Mathematically, it's a waste of time! Sure, you can get lucky, you can find a JMoD in the first run or so, but... yeah. People that MF don't really depend on luck that much - they do hundreds of runs every day that averages out to slightly above nothing per run.
In the end, when my friend finishes expensive auradins in the middle of LD, MF people still run around with their lame MFsorc trying to sell their mf-ed shakos for pul.
Long story short: wanna get rich? Don't MF. There are other ways. Trading, rushing yourself, anni hunting if you're dedicated, torch runs early in the season... MF is the worst, and most boring one.