The footgun of right-to-left decorative characters

Mixing R-L and L-R scripts (as has been discussed here on many occasions) is a ripe arena for mysterious behavior. Given that even monolingual texts in R-L scripts will often include L-R characters, it can get hairy quickly. A desire to try to avoid having visible markers in text around the transitions is partly why the Unicode spec around bidi text is so complicated.

If you are using plain text and don't have access to HTML or CSS markup, you can follow the RTL character with U+200E LEFT-TO-RIGHT MARK to achieve the same effect. And even if you do have access to those things, using U+200E ensures that operations that strip markup (like copy-paste) don't break your text.

https://xkcd.com/1137/

Disappointed that xn--sei.com or <insert fleuron here>.com is apparently registered but not redirecting to ornately decorated texts.

The Unicode committee needs to be dissolved or else Unicode is going to evolve into a full page markup scheme to rival pdf.

This is why I stick to standard ASCII.