Make "Category" field on project nodes required

Problem/Motivation

It is difficult to find uncategorized modules.

Proposed resolution

We have two options:
1. Add “Other” category.
2. Make "Category" field on project nodes required
3. Set all currently uncategorized modules to "Other" via db query magic.

Remaining tasks

Determine the actual number of uncategorized modules to see if this is worth pursuing. Pick one of the two options above and implement it.

Original report by BAMaustin

Due to the small number of 6.x modules, I was able to notice that the Module browse by category did not give access to uncategorized modules.

I was thinking I had been diligent in looking though the categories.... turns out I needed to cross-check through the Alphabetical Listing too! This fact is invisible because there are SO many modules. Plus, the Browse by Name doesn't give a record count and summing up the listings for all the categories wouldn't match the total number of projects anyway (since many project have multiple categories). I only noticed because I build a cross-reference of 6.x module categories trying to locate a 'missing' Admiinstration category record. (See http://drupal.org/node/177981 )

Perhaps there should be just be an "uncategorized" category so they can be reviewed without looking through the entire list?

If you don't want to 'enable' lazy project submission practices, wouldn't making a valid category definition into a "required entry" field be a good idea? Maybe even add a "nag" eMail that gets sent every day/week to the uncategorized project Maintainers saying how many times users had to wade though a Miscellany of undifferentiated modules (how many tmes the uncategorized page was served) because they haven't set their categories yet. If those eMails bounce, perhaps a solicitation should be added to the project description requesting someone take over as Maintainer and the project set to 'inactive' or 'on hiatus' until a new Maintainer steps up.

Perhaps a voting option on whether a project should be re-categorized would be a cool feature. (Weighted by profile level of the voter, of course. Newbies like me always offer unqualified opinions.)

References: User VeryMisunderstood added categories to the 2 modules I noticed had them missing in the 6.x filtered listings. )
http://drupal.org/project/issues/57296
http://drupal.org/project/issues/137538