Special Characters in Negative Keywords in Ads

[DmitriiK]

Howdy, fellow mozzers,

I came across this weird suggestion in my Bing account (screenshot link: https://dmitrii-regexseo.tinytake.com/tt/NDY3OTc5NF8xNDgyMzY4OA)

It almost that the dollar sign in the negative keyword is acting like a wildcard character, or being disregarded completely.

I did some tests, it seems that in Google Ads that is not happening.

Does anyone have an idea if this is normal behavior? I have never seen this before.