You might be wonder but around here, people loves to watch Korean series.
There are also good series ans cartoons in the cable TV too, but not that popular.
You have already 'deep clean' the toilet and the stain is still there. I guess normal cleaner won't work. I suggest cleansing agent that labeled as 'concentrated'. Another good way is to use hydrogen peroxide.
I google the website and there are nice tips here
How to Clean Tough Stains from a...
From the picture I doubt it's mold. I'm pretty sure that it's just inner part of your carpet.
Just flip up the carpet and see what's happen.
About the possibility that it would be mold. Don't worry too much.
Mold is not that dangerous of you don't eat them.
A normal fabric face mask is...
That's new for me. Sounds scary, though.
I've heard too that NSAIDs are irritated to the stomach.
Does aspirin have same effect as Ibuprofen? Since they're both NSAIDs.
My jobs always benefits the country and people. It's not just for a money. If I work harder then everyone will get happy, that's why I work harder and harder everyday.
And of course, I love it, too.
It depends.
The patch isn't the problem, if it's properly place it'll be there for a long time.
The real problem is the cause of crack. If your floor crack because impact from usage, the patch should OK until it gets another big impact.
However, if your floor crack because non-uniform...
I don't have any wallpaper on, but if I would have one, I would like white background with some pretty images on.
I'm sure it'll be better than paint, because my painting skill is miserable.