Check it: colons are incredibly useful for introducing new ideas or adding emphasis. And the way people talk on the internet could use significantly more clarity: you can ramble and ramble, and just talk about whatever, expand on your point, really beat that dead horse, and then take a short break. But using colons allows you to introduce an important new idea: they provide a clear separation between different thoughts.
Oh yeah, about the colon as intestinal organ: idk…stay away from Taco Bell unless you have some extra time
Em and en dashes deserve more general appreciation too, although it seems more of a typographer thing when a hyphens or parenthesis gets the job done but I always forget to close my parenthesis… I know mac makes it easy to type but windows is cumbersome.