I can see I'm dealing with some disgruntled recipients of parking tickets and unsightly premises violations, so the misconception that MLEOs only carry out those tasks appears to be alive and well. Carry on. 
I think the concept of Arming By-Law officers before we look at arming University and Transit Special Constables is ridiculous...
Why not try giving all the resources to the people who are already Almost full on cops vs people who are arguably a couple levels above a security guard.
I am all for Arming those people who need it, and using them as force multipliers for the Police out on the streets, but I've seen too many by-law officers who should never carry...
besides... why not try for intermediate UoF options first? I say give em some hot sauce and a learning stick first and see how they do with that.... or maybe body Armour...
In Hamilton Most of the parking enforcement is done by commissionaires... do you really want to see them armed?
Not to mention, the increased cost of equipping, training, re-training, etc.... I just don't see it as being worth it... If you want to carry a gun, you have a couple options... Become a Cop, join with a Armored car company, or try to get into one of the other Provincial or Federal enforcement branches that carry....
I really don't think that By-Law needs to be going it alone in that regard... if the situation warrants it, they should be showing up with a couple of Cops in tow...
After reading both those articles I am convinced that man is an Idiot...