Yeah I think it's a good change. 7 days and that's it... always made for a lousy user experience. Many times I'd read a post, go to upvote it and get the error message... Hadn't even looked at how old the post was until the blockchain was yelling at my face
And it was contrary to how the rest of the Internet operates. There's no time limit on giving Facebook likes, YouTube likes, Reddit upvotes, etc...
Shame I can't be bothered
'Tis a shame, that