Right, in the Rules forum. Here it is, with no implicit recommendation from me -- I haven't read it, and don't know how useful it might be.
http://www.enworld.org/forum/d-d-4th-edition-rules/251816-so-about-expertise.html
There's a somewhat more constructive thread in House Rules where people discuss house rules to address the scaling issues without the need for (and with the presumed banning of) these feats.
http://www.enworld.org/forum/4e-fan...ves-feat-tax-solution-hit-f-r-w-defenses.html.
The basic math is:
Over 29 levels, from a starting level 1 character (with no magic items) to level 30:
To-hit, AC, and Fort/Reflex/Will gain +21 from levels/enhancement bonuses.
Assume you split your stat boosts to two stats that add to different FRW defenses. One of these stats is your primary attack stat. If you wear light armor, one of these stats boosts AC.
AC gains +6 more: either +6 from Masterwork Heavy Armor, or +2 from MW Light Armor and +4 from increases to an ability score which adds to AC.
To-hit and your two strong FRWs gain +4 more from Primary/Secondary Attribute advancement
Your one weak FRW gains +1 from the ability score boosts at levels 11/21.
So AC gains +27, to-hit and your two strong FRWs gain +25, and your weak FRW gains +22.
Over these 29 levels, monsters gain +29 to their to-hit and to all defenses. Compared to the monsters, players lose 2 on AC, players lose 4 on to-hit and their two strong FRWs, and lose 7 on their weak FRW.
These numbers don't take into account powers, Paragon paths, Epic destinies, or feats. This is just the raw effect of levels, stat increases, and enhancement bonuses of magic items.