No links for popular_by_month or popular_by_week?

Hi,

For some reason, under the "Popular" page, there are no longer any links to popular_by_week or popular_by_month. Is there a reason for this?

Also, I vote for the introduction of:
popular_by_quarter
popular_by_year
popular_by_legislativeperiod (4 years)
and
popular_by_decade

(Yes, I know danbooru is not that old yet...)

You can still reach the popular by week and month links through the >> tab on the top bar or http://danbooru.donmai.us/static/more

It's not possible to search popular by month or week or any other interval manually anymore though, as it takes three metatags.

Can't you just use the score:>## tag? It's basically the same idea.

Without also using a date metatag however, the score tag is mostly useless, since all-time highs and lows don't change much over time.