Boomer attempt at a line-break?
"#FiveJobsIveHad" and "his new podcast" are both 15 characters each, so it would be roughly same if he's simply trying to line break.
>I don't know that these leading character counts are relevant since these vary with the formatting of the browser.
This is what I mean by "boomer attempt", like your dear old grandma in Microsoft Word holding down the space key to manually line break rather than pressing return. Good ol gran doesn't realize that it's going to display differently per browser, or even Twitter API on mobile apps formatting it in potentially unlimited ways.
I don't know though, just spitballing.