You might wait, what, a 10 person line to get a free t-shirt? Making 5 “corrected typo” commits is probably equivalent to that effort and looks like 5 is enough to get past a spam tag.
I really wouldn't. I'm not a minimalist by any means but I've been decluttering for a while and am certainly long past the point where I'll tolerate having possessions that I don't want. Maybe this is a privileged point of view but, as with swag in general, most vendor t-shirts are honestly just tat.
