This mostly falls under "Accessible", but want to highlight how incredibly limited the UI is in every proprietary messaging platform. One is forced to interact with it in just one way and it's inevitably missing tons of functionality.
With email, there can be no limits because it is an open standard.
One can pick whichever MUA (email client) one prefers or trivially switch betwen multiple ones without any loss of data.
But even more importantly, if one has custom needs or preferences, that is also easy. All my incoming email goes first through procmail where I can apply various filters and labels and can sort it into different folders and priorities on completely custom criteria that fits what I want.
With email, there can be no limits because it is an open standard.
One can pick whichever MUA (email client) one prefers or trivially switch betwen multiple ones without any loss of data.
But even more importantly, if one has custom needs or preferences, that is also easy. All my incoming email goes first through procmail where I can apply various filters and labels and can sort it into different folders and priorities on completely custom criteria that fits what I want.