The Community Legal Assistance Society has published a new guide called "Waiving Filing Fees in BC Small Claims Court" which offers step-by-step advice on how to apply to the court for an order which allows parties to avoid these fees.
Although Small Claims Court is designed to be more accessible and less expensive than the B.C. Supreme Court, the filing fees can still be prohibitive for low-income parties. For example, the fee for filing a claim ranges from $100-$156 depending on the amount of money at stake, while defendants must pay $26-50 to file a reply. A complete list of filing fees can be found here.
It is also possible to apply to have court fees waived at the B.C. Supreme Court by applying for indigent status, which I wrote about here.