Nope, I'm pretty sure it's not a spambot, sinse there aren't many sites about sound based games, I think it's the games' actual creator. However I believe she/he missunderstood the purpose of the site, and assumed "audio games" meant games with audio in put, ie voice control, clapping etc, not games that output to audio and are thus accessible.
As I said though, if the developer is interested in making access changes we'd be very glad to help indeed.
Btw, might I suggest people do not accuse others of being spambots on the forum, sinse it's not exactly friendly, especially to a potential new developer.
Spambots are usually far more obvious than this, and will not mention audio games. if you believe something is spam, it's probably better to report it if it is over 24 hours old and hasn't already been deleted. and it is even less likely to be spam if myself or one of the other moderators has already replied to this topic and thus has certainly read it (if we thought it was spam, we'd have deleted it). While we're not infallible, it's unlikely we'll have bothered writing a reply to a spam topic without just deleting it first.
so, bottom line, please don't accuse others of being spambots. It'd be dire indeed if a developer turned up on site, was accused of being a spambot and left in disgust.
This isn't an official moderation warning, sinse obviously both Brad and Alex are trying to help, just a word of advice.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)