Looking at https://web.archive.org/web/20220207120417/https://braiins.com/os/plus/license the license page was there as of 7 Feb 2022 so between then and when you forced an archive back in July it changed. Could have been 2 minutes before you clicked on it or it could have been 2 minutes after the last archiving. Unless someone else archived it someplace else we can't know.

As for the percentages / hash rate some people feel the power savings and speed improvements that *they* see is worth it. As always YMMV. Some people have discussed good speed improvements and much lower power use. Others, like you have seen very little or none. If you have hardware that can be pushed harder at a lower voltage you will probably benefit more then someone putting it on an old & abused miner that can't do much more.

-Dave