I also am a "daymon" guy. I think of the "deemons" as the bad guys and the "daymons" as good guys, hovering in the background until they are needed.

In English, I pronounce it dee-men and Linnoox.
In German, I say Dämon (that's the A as in (cr)apple the O as in long) and Linux (that's the IE as the EA in real and the U as the OO in good).

I know Linus from Peanuts is pronounced different, but I just pronounce Linus Thorvald's first name as I recon it would be done in Finnish (or Latin since the name's from that language originally).

PS: I know no BSD user at all and almost as many Linux users as (cr)apple desktop ones (who think if you don't pay tons you will get nothing good - and get broke that way).

That's my position also. As a Christian, I don't like the idea of getting services from demons, even as a joke. But as someone who did Greek at school, I know that daimons were good spirits, not evil ones. Socrates claimed to have a daimon that occasionally advised him.

I have been using daemon pronounced as "Day"-"Mon" long A.

day-min for sure

Dämon and day-mon, usually.

I've always pronounced it as daymon.

same here

In the Greek, it's Ay EE
thus, in a smooth and brief syllable, day-ee-mon -- which is real close to daymon. Dymon is right out, but the unabridged tells me that deemon is okay too. go figure. YMMV

No, that's the Latin transcription. The original Greek was daimon. And in both Greek and Latin, the 'a' was pronounced ah, not ay.

Modern usage has a tendency to drift from classical usage in response to changing needs, of which this is a good example.
I am in the 'daymon' camp for the pronunciation of daemon, as it differentiates a background process that does only a small set of tasks in a predictable fashion (in the manner of a good spirit) from a demonic piece of software capable of unpredictable/destructive behaviour (in the manner of a bad spirit).

/di:mən/ because I've been subconsciously trained to pronounce <ae> as /i:/ by evolutionary biologists. Also, that was the original pronunciation (and demon was the spelling of the namesake for daemons).

When I met Linus at a conference some years back, he said he pronounced it "Leh nucks" And he pronounces his name as, "Lie nuss." FWIW.

I usually say deemen, but the ancient Greek δαίμων (with a long o) is appealing.

Always went with...

day mon