There is a minor bug in formatting preview feature. In the following case, preview shows all text striked out (even text following the
</s>), but final formatting doesn't allow cross-paragraph HTML tags.
Example: I guess could try this:
bla bla bla</s>
The above example is not completely fictional. In some cases it is useful to strike out obviously invalid part of an answer, but not delete it since it provides vital context for the comments or following parts of the answer.
[There seem to be several bug reports for preview/final formatting inconsistencies, but I didn't find anything about this case]
<s> tag after "Example: " text, but final markdown formatting doesn't show it.