> I like being able to paste code into chat and have it syntax highlighted.
Use a pastebin, there are plenty out there. See: https://paste.sr.ht/ or http://ix.io/ or https://paste.rs/ or https://bpa.st/ or https://gist.github.com/ or https://paste.ubuntu.com/ and many, many more.Regardless of there being a better tool for syntax highlighting and holding small linkable snippets of code (so that logic doesn't need to be more to download when opening your chat) it also keeps it _out_ of the chat so it's not polluted. People not being able to instantly insert 20 lines of text is a _good_ thing. So, link to the resource don't embed it.
> I like being able to ping people so that they get a notification on their phone, and likewise, I like people to be able to ping me
In the article you're responding to Drew directly mentions their suggestions for Push Notifications. I don't mean to sound facetious but, did you read this (article) in it's entirety? > Occasionally, I like to send a GIF
See above: link to the resource, don't embed it.