Rules Help needed to understand what was given infraction for.

I think many noticed that in 'buy sell trade' section mods are very strict... nothing wrong with that, if they do it right.
I got several infractions lately, and after searching rules i found myself guilty for previous infractions.

But when mods start to see things which do not exist and delete topics + give infractions/warnings i think it is not ok.

As long as my topic deleted and i do not have any proofs, ill post screenshots from my gmail.
Maybe im wrong and blind - please help me out to find my fault:

In the 'signature links sales' section i posted that i want to buy DP signature link.

You can find my post quoted (in screenshot), which was the reason for warning.

 

It was in between the last 24 hours.
I was topic starter. Had only this post, which is on a quote in my email on a screenshot.

Quoting my topic text here too:

Can not understand what is wrong with this.

 

Smyrl, sorry for my dumb question - what means SNAFU?

 

Yes, sure! Thanks much for your help to figure this out.

 

you just got caught up in something. infraction reversed and that thread will get re opened. sorry about that.

 

Thanks for reopening thread.

In what exactly? I need to know, otherwise how can i learn from my mistakes when i do not know what im getting infractions for.

 

nothing i'm willing to discuss, suffice to say you did nothing wrong. but hey, the days still young right?

 

Ok here is my version of this accident (this is only my version i may be wrong, as everyone does mistakes too):

Assuming to this that I also got some notifications from that topic update - according to them - people started to post their offers in my thread instead of pming me,
This is a couple of those updates:

And i bet mod simply not readed what i posted and gave me an infraction because maybe he thought i asked to post prices in topic.
I think this is makes sense.