A filename length limit is not a Nice-to-have, it is an absolute prerequisite. otherwise the plugin is unusable.

A typical tumblr gallery has over 50% of posts with too long filename. I have sincerily stopped using JDownloader at the moment cuz it is simply unusable and a waste of my time to rename all the failing download due to too long filename.

Personally, i prefer the old naming convention which was ending with a picture quality (size) number and I could automatically filter lower quality pictures (JDownloader downloads all the different quality pictures and you end up with duplicates of different resolution).

Sincerely, I just wish i could have see this coming and I would have turned off the auto-update.