For the OP, it’s also perhaps a situation where it’s now seen by a growing number of owners in your property to be an acceptable practice to not pay fees simply because “others are allowed to do it, so why can’t I?”.
Once lot owners come to realize how complacent their OC might be in managing defaulters and how difficult it can be to chase/recover debts it becomes an easy choice for some.
Once this evil genie is allowed out of the bottle it becomes very difficult to put it back in.
An OC is not a bank or a lender of last resort. It’s the good lot owners – the compliant, fee paying lot owners – who end up having to fund these quasi-banking activities by paying higher levies to fund the shortfalls, placing more financial pressure on these good lot owners. This could ultimately lead to more good lot owners deciding to not to participate in paying higher levies and instead joining the list of defaulters who seem to be enjoying an easy ride at the expense of others. So the problem just gets worse and worse over time.
Firm action should be taken at the outset rather than letting the problem grow.