7HS said:
This tag needs cleaning up if it's going to imply chart.
Currently, in addition to "standard" bust charts as described in its wiki (and adequately chartlike variations like post #3906193,) it contains a lot of random pictures of multiple characters arranged in a decidedly non-chart-like fashion, usually (but not always) with some kind of textual reference to their bust size.
Examples of posts tagged bust_chart that aren't really charts are post #44680, post #434162, post #631680, and post #2375591.
I'm inclined to disagree with the first two. The first indicates a decrease in bust as the number increases. The second is outright implying the size differences by alphabet, albeit not much.
But I do agree that the tag itself is going to need some cleanup. Possibly a bare minimum to qualify, such as the format shown in the tag's wiki.
What's better? Only going by the format demonstrated? Or allowing exceptions in scaling such as the first two images?
I don't lean on the latter two's inclusion, as their only indication is... Lacking? The quantity of characters and lack of additional visual cue makes them iffy. Besides the ABCDXXX in the Vocaloid image.
The fourth outright isn't chart-like in any capacity- It only lines the characters up with their bust size increasing to the right. Calling it a chart might require it to have a larger quantity of characters as demonstration.
... Or rename bust_chart to suit all four of those posts.