I think 8% is pretty decent, from the more recent LOC rate posts. Mine is now at 9% lol and I doubt RBC is going to lower it anytime.
Well, people do pay down the highest interest rate LOC or loan when they have the funds or they do invest the amount, hoping to make alpha though it's not a guarantee, just like most things in life.
TFSA contribution room just opened up and so did the 60-day RRSP window for tax deductions for 2018. Refunds will be coming soon too so those LOC's will likely be paid down. Maybe people are taking advantage of the January effect where stocks more likely go up than down, haha.