TA Please Take Notice. Can We Ever Get to the Bottom of This???

I'm going to try again on a subject that's been raised here before....

Partitions have been put in by the landlord for years now.  What are these partitions?  Are they partitions that convert, say, a two-bedroom apartment into a three bedroom apartment, as we see in the diagram below? (Click on any image to make larger.)

This is the type of DoB application that is filled out by the builder to create partitions, presented here, for our purpose, in its more important three sections:

Please note that the alteration type checked off is Type 2 and not Type 1.  A Type 1 alternation contains a check mark area for "Change in Room Count/Dwelling Units" and one for "Change in Occupancy/Use".

So if the partitions created in this application for three Stuy Town apartments are partitions to create an extra bedroom, as in the diagram above (which is not of any of these apartments, btw, but just an example), how is it possible that these partitions were legally put in, as the paperwork was not properly filled out?

These partition applications are very numerous in Stuy Town and Peter Cooper Village and can be accessed at the DoB site:

http://www.nyc.gov/html/dob/html/home/home.shtml

From there, go down to the left and see "Buildings Information"... and fill in.

It's obvious that the creation of extra bedrooms serves the landlord very well, particularly in renting out apartments to hordes of students. This complex may now have 5,000 more tenants thanks to the creation of extra bedrooms.

So, TA, have you looked into this at all?  And, if so, what is the outcome of your research?

UPDATE: 9/19/14:

The info below I found on a site that is not official, but it tries to explain "Alteration Type". The insertion of partitions to create a new bedroom (if that's what those partitions are for) is considered by CW and before them, TS, as Type-2. Here's the info:

An Alteration Type-I Application is required when there is a major change to the Certificate of Occupancy of a building, such as converting it from commercial to residential, an interior conversion of the building or a space within a building, or due to a building addition. Most commonly, an Alteration Type-I Application will be used to change the Maximum Number of Persons for a space, to change the Occupancy or Use Group of a space, and/or to change the Description of a space.

Alteration Type-II Application is an alteration that doesn’t change the use or occupancy of the building but requires several types of work, such as plumbing and construction. An Alteration Type-II Application may be used when there is no change to the Certificate of Occupancy due to the proposed alterations, such as with an interior fitout or alteration. When an Alteration Type-II is filed under Directive-14 (such is the case 99% of the time), the Applicant or other NYS Registered Professional Engineer or Registered Architect may signoff the application with a Directive-14 Final Inspection.

Alteration Type-III is a minor alteration that involves only one type of work, such as a curb cut or a construction fence. ALT-1s and ALT 2s must be filed by a registered architect or licensed engineer; some ALT3s don’t require detailed plans and can be filed by a non-professional.

UPDATE: 9/24/14:

UPDATE: 9/25/14: