I did inform having issue with cloudflare after testing up.
The cloudflare base on an analysis on IP risk score are block and need verification.
Post with codes , add attachment , uploading links will trigger it.
I tried disable java posting code and still persist with cloudflare and even redirect back to homepage.
Cloudflare will randomly flag base on client browser/ip and etc so not everyone having this problem. High possibility with private IP TM user.
Sometimes there is no rayid , when posting it just return back to homepage.Anything I type gone.
The only option now is to post a pastebin code and upload to image hosting.As you can see , there are a few thread on unable to upload attachment picture.
There are no instances of your IP address being blocked/challenged by cloudflare over the last 72 hours. You will have to share with us a screenshot of what you are seeing as we are not able to see any issues based on your ip address logs.