This is an answer from mprep why he locked your 2 threads but I don't see any rule in
Unofficial list of (official) Bitcointalk.org rules, guidelines, FAQ that there is a restriction that does not allow to make new threads (I could be wrong because they are unofficial ones and everything can be changed or decided by admins or moderators).
Your threads were locked due to one of them being a campaign to incentivize posting in a specific thread and the other - the target thread of said campaign. Incentivizing posting in threads outside Games and Rounds is prohibited. As such, both threads will remain locked.
One point I can understand, when your account was temp banned, you are not allowed to post during your temp-ban time (2 weeks as you disclosed). Look at the created day of the archived thread. It's a same day on which your 2 previous threads were locked so it violated your temp ban, a kind of ban evasion and I think it is why that thread was archived.
I guess your 2 threads were locked on 7 March or days before that day, and your latest locked thread was created on 8 March. I am not sure when your temp ban started, since 8 March?
25. If you get banned (temporarily or permanently) and create a new account to continue posting / sending PMs, it's considered ban evasion. The only exception is creating a thread in Meta about your ban.
But now dogedice.me's temp ban is over so making a new thread will be legal, IMO.
1) They locked our signature campaign thread AND BitDIce ANN thread. That's what he meant by "both threads"
And 2) I am not DogeDice.me, I just made this post as this concerns me as much as it concerns them.
The new thread was created AFTER the ban expired (it was created by dogedice.me after all)