Please explain Draft. Confusing me

[fastdice.com]

I am reasonably new to Bitcointalk, I am working on giving some well thought out posts to get some cred for upcoming reasons.
Im a bit confused by the auto draft save
I generally try and put a educated response (Most times), and sometimes get a message Under 360 sec and it is saved to draft. When I go back to try and post it says I am trying to duplicate. Then it is the last I see of the message or draft.

Any help on this. some content is quite valuable and a shame for it to not been seen by others (Avoiding LBC fraud, Gambling addiction and a few other helpful things)

Any advise on this is appreciated. I normally work on LBC  so trying to stretch my BTC network slow and steady!!!

[ranochigo]

Drafts are located here: https://bitcointalk.org/index.php?action=drafts.
It is saved whenever you preview or post anything, PM or on thread. If you somehow get caught in the limit, the post would be saved in the draft. For me, I just press the back button and copy the message and post again.

Ranks have delays between post, the tables for calculating the delays is this:

Ive adjusted the limits to make spamming more difficult.

Activity	Min. seconds between post actions	Max PM recipients	PMs per hour
0	360	3	5
16	74	5	30
30	60	5	60
60	30	5	60
100	12	10	120
200	10	15	120
300	8	20	120