We haven't heard any on our end, because students aren't members of our association, but from time to time we see some of those stories.
Personally, I got a grant to do my master's in 2006, and a fellowship for my doctorate from the Social Sciences and Humanities Research Council, or SSHRC, in 2008. I got postdoctoral fellowships after that. I remind you that those are taxable. Yes, it's $34,000 a year, but that amount is taxable. So you have to find supplemental income to keep up a decent standard of living.
In smaller institutions or those in rural or remote areas, where researchers have trouble getting funding from granting agencies, it's hard for them to provide additional funding to students. This leaves students with the choice of either pursuing higher education and accepting to live in deplorable conditions or entering the workforce.
Right now, given the labour shortage, salaries are very competitive, and that's more than researchers are able to pay to attract talent to their research teams.