Maybe it's because I don't have any attachments posted in threads, but I'm not seeing how much alotted space for attachments I have like I used to be able to. Could be a PA thing on my end.
Anyway what you can also do is use an image host like
Imgur to add pics to your threads. Then you don't have to worry about using up your alotted attachment space and having to go in and delete old ones etc.
The pics from Imgur still show up like a regular attachment. Like this.