But the numbers are bullshit. WM should not give such big numbers.
I disagree. There are a number of reasons why the Tydeus' proposed schema is a good one:
1.) As Malaclypse said, there is an imbalance between extreme strength and extreme agility builds in terms of usefulness. There is currently no point in having an extreme agility build (ie 27 or more agility) for a melee character unless you are either very high level, a rageball alt, or someone who enjoys being dead most of the time. Extreme strength builds (ie 27 or more strength), on the other hand, are very rewarding to play on both duel and battle as long as you know how to block and have good awareness. Something that makes them of more equal effectiveness is a plus in my book.
2.) As it is currently implemented, there is little reason to get a lot of WM over converting the extra skill points you would save or allocating them somewhere else. With the free 111 wpf he gets from leveling, a straight 1 weapon melee build usually only wants about 3 WM to offset the penalty from his armor. This would be fine except that even hybrids don't get as much out of WM as they do with a similar investment in other skills. 7 WM is currently not enough to use even 3 weapon classes at 110 wpf (before armor penalty), whereas 7 riding is enough to use nearly every horse better than the majority of the population.
3.) From the standpoint of game design, it makes agility and WM parallel with strength and IF. With a change in the vein of what Tydeus has suggested, you would be able to get decent wpf with sufficiently high agility and no WM in the same way that you would be able to get decent HP with sufficiently high strength even with no IF, although you would get a greater benefit in both cases by actually investing skill points.
The specifics of it may need some tweaks, but the general idea of it is definitely sound. Some people have raised concerns about excessively high weapon speeds coming out of a wpf rework, but I do not think that will be a major issue because cRPG now has an absolute level cap of 36 and no wpf carryover on retirement. It is unlikely many people would be able to get more than 200 wpf in one weapon class without either being very high level or sacrificing everything else to do so, and the requirements of specific items can be adjusted if a problem arises.