After consultation and deliberation with multiple parties, I do not feel this is in the best interest of the imgfilp community. While yoga pants have comedic value because of their controversial status, they do not easily violate the TOS as "things" are well covered. Cleavage week pushed the bar as far as we are willing to go at the moment. Depending on how that week goes we may not approve a similar week to that in the future.
To ensure the site remains fun for all users, including female users and younger users, we feel a week long event that has a moderate chance to invite violations of the TOS, particularly in comments sections, we will have to decline this suggestion for the Theme Week stream.
My apologies and I hope you understand the reasoning behind it. We have so few female users we don't want to drive any away or have new users that week think that's what this site is about.
There's also no lack on panties on the internet. Most likely, that's 50% of the internet at any given moment. :)