Is this a genuine thread? I’m not sure whether to laugh at 44 posts on taxi speed in an RPT jet of laugh at the idea that some folks think it’s unsafe to taxi at the manufacturer/company SOP max speed. Assuming you hold an ATPL, you should be able to work out when it’s safe to taxi at 30kts (I have no idea what the Ejet max is).
I remember the 737 classic had a wobble at 17 kts, you either went above or below, problem solved. I haven’t seen a similar issue on other types. As for 30 kts, I’ve never felt unsafe doing it in a straight line. Sorry to add post #45…….FOMO.