If it helps, in regards to my fonts....
If there is a technical issue with one of my fonts, or missing files or whatever, You can always contact me for questions and I will help as best I can! :)
If it is a payment or delivery thing, That will be handled by the Saberfont team
As always you are very willing to fix and patch your fonts - the issues I've had have not been with any of yours, and I picked up a load of your new ones - Old Master might be my new favourite font that you've put together
What I was thinking though is that for those that purchase a font and later there is found to be an issue with it, unless the font author posts a patch here or on another website and you happen to notice, or if they send it to you directly when you spot the issue, there is no way to get the update.
So if you never knew there was an issue you would go on using the un-patched version. For example one of the fonts I found an issue with would be severely hampered if you got the version I did and didn't know there was an issue (which is entirely possible as the font works - just sub-optimally) - in that example you'd literally be missing out on most of the font. The font maker has already sent an update to Saberfont which all the new purchasers will get, but for those who got it originally when I did they may never know - and worse might just think it's a rubbish font when a simple patch would unlock all its awesomeness
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Since Saberfont now have an order history and know who bought what font, and when they did so, they could in theory notify folks of a patch, and even provide the patched files as a subsequent download. This may well get a bit complicated, and it's just a thought, even if it was just a notification to contact the font maker that might help tip people off.
I notice the new site asks for comments and suggestions so I might send as a suggestion directly to them.