The wall ties are there but were not installed. The lack of properly installed brick ties weakens the brick wall. The weep holes serve three functions. The only way the mortar can be cleaned out is to remove the brick. All manufacturers of exterior siding require that a vapor barrier be installed behind the product, per their insulation instructions .
Wood destroying insects do a tremendous amount of damage to wood structures.
That is, actual tearing back of sheetrock, carpet, etc. to show the actual damage done. Note the evidence of water penetration. Leaking plumbing did major structural damage to the wall in this bathroom. This is what I call disposable MDF baseboard. This is all that is left of a wall stud.