While marking text with the strikethrough or subscript options, several visual glitches seem to occur that are inconsistent with other formatting options and with how the final text is displayed.

Firstly, the strikethrough preview at times affects the tildes characters, unlike what occurs for previewing bold or italic formatting. This isn’t always the case for some reason though, as occurs if I try marking the word ‘formatting’ in the first paragraph with strikethrough formatting. In that case (as illustrated below), the second set of tildes are not stricken through, along with the ‘ing’ of ‘formatting’.

Another glitch that occurs is that the text appears small when marked with strikethrough formatting in the formatting, seemingly due to the use of a single tilde character for subscript formatting, as is visible in the image above.

Something else that can occur is the strikethrough formatting impacting not just the word and the tildes characters next to it, but several words afterwards as well, such as is the case if I apply it to the first use of the word ‘formatting’ in the second paragraph above, as illustrated below.

The same occurs for subscript and superscript formatting, as demonstrated below.

Something that affects both strikethrough and subscript formatting (along with superscript formatting) is that their effects are displayed on the edit screen even without closing tilde character(s), as such:

As far as I can tell, the glitches above don’t appear to impact bold, italic, or code formatting.