If you're an account with no profile pic, header or bio, it would be great if you could fill them out when you get the chance. Only takes a couple of mins. So many new followers are anonymous. It's nice to know who people are, and that they're not just bots (of the wrong kind!).
@Richard_Littler My display name and bio are both U+200B (zero width space).
Zero-width joining space. Useful, I find, to stop text being parsed as URLs without splitting.