hello Fred, I was a bit bothered when I doubled post on some forum because I retries a post whenever it got errors.
I had also got banned because of posting about 10 threads with same content because of retrying topics. btw, that forum has captchas

when does a thread/reply comes on the "history"?.. wand what's with the thread/reply stuck on the "activate?"..

I'm thinking of I did double post because I retries a thread/reply on "history" and do the same on the "activate"

If it was just posted it is left in active and also added in history. However both of those statuses are related.

If you try to retry the one in active, the same in history is removed (and the other way around).

It can auto-retry automatically if there was an error.

I was just confused fred, when would threads will be moved to history?.. and please can you add removed "yellow warnings" button too.

You can quickly remove the yellow warnings by selected them all and pressing delete key on your keyboard.

Statuses are moved to history when they fail or succeed, also a copy of it is left in active, since it was just posted / failed and is considered as active, but they all are linked to the statuses in history. By re-trying one the other will be removed.

Those statuses will disappear from active when program closes or when you remove them.