It seems unnecessary to straight up block potential customers from signing up because of their browser. Encourage them to get the full experience using another browser might be a better idea.
Suppose you are the proprietor of a physical retail business.
You're the only employee, so on Sundays you close the shop because otherwise you'd be short-staffed.
Do you listen to potential customers who complain that you're not open on Sundays by (a) offering them a degraded experience by letting them shop while you aren't there, (b) hire additional staff to support the shop on Sundays, or (c) tell them to come back during normal business hours?
If the amount of revenue you'd make by expanding the number of hours the store is open per week is less than the costs of supporting the additional staff, you ought to pick (c); otherwise, pick (b). It's bloody irrational to pick (a).
Did you mean to post this comment to the previous article and not this one? The article shows that the site works in IE9 and IE10.
Not to mention that the author not only chose (c) but also posted the equivalent of saying closing the shop on Sundays is a feature because Sundays suck for shopping(which is obviously wrong) and basically advised other sites to do the same.
> The article shows that the site works in IE9 and IE10.
To return to the analogy, a closed store will have stocked shelves and a cash register on sundays. The problem is that the store owner doesn't want to pay someone to work sundays making sure things are ok and stay that way. Likewise, supporting IE is not just a process of running through a site once and saying, "looks good." It requires continual testing, and this testing happens every time the site changes.
Also, Chick-fil-a is closed on Sundays and they claim it is a feature. And some people are religious about browsers too.
