Okay it's taken lots of lurking but I have seen the problem with gyazo links first hand now.
I have some good news and some bad news.
The good news (good news for me anyway) is it's not RS Linkify related.
I have tried the links in different browsers (IE, FF, Opera, Waterfox and Chrome 32 + 64bit) and the issue with Gyazo occurs in all browsers (without linkify). FF reports a similar error to chrome.
It seems Linkify's error handling is doing it what it should do, and aborts embedding once an error is thrown, so there is no risk of redirection loop occurring within the post that contains the link.
The bad news is there is nothing I can do about it. This something that needs to be resolved on the Gyazo servers.
I'm not a fan of Gyazo at the best of times, so my recommendation of not using it may be bias, but until they fix the issue it's probably not a bad recommendation.
Big thanks to Rowley and those who have posted info about these links. I'm sorry it's taken me so long to catch the issue in action, and if it weren't for Rowley's continual help I'd likely be unaware of the issue or still scratching my head wondering what's going on.
01-Dec-2014 11:51:48