I cannot believe you think these have any relevance. Those have combined numbers into the logo for a 'clever' double meaning, which is not part of the official name and neither is meant to imply a changed pronunciation.Highlighting a part of a brand name/logo to emphasise a second meaning isn't anything new. 'Era' being a different colour is because, yeah, it's a new era of the forum and reset of the old one, but it's still obviously pronounced re-setera.
This doesn't read 'Bthirtyoner baskin robbins'.
This isn't 'Resident Ee-seven'.
Neither is part of the name, just logo as a marketing thing.
The forum is named for being a reset of GAF and new era. It is not named after the latin phrase Et Cetera, with 'Era' as a 'hidden' double meaning. The 'EtcetEra' name for the off topic is the cheesy 'double meaning' part, just like 'vERAfied members etc.
Illiteracy is the word that came to my mind as well.