Is it common for the approach controller to vector for an ILS at an
altitude below the GS intercept altitude on the IAP? Today is the
third time in the last year or so that Victoria terminal vectored me
for the ILS into BLI at 2000 feet, instead of 2100. I'm very familiar
with the area and I did not bother to question them.

The Canadian controllers provide approach service for Bellingham
probably from an agreement between FAA and NavCanada. Maybe the rules
are somewhat different in Canada, or they just don't have the right
information on this approach?

See http://204.108.4.16/d-tpp/0604/00045I16.PDF