Character `0x09` is replaced with `0x20`and `0x25` is removed
0x09is replaced with
0x25removed in a forum message?
It might be system security library , which check the content before saving it , I will check it and will get back to you on this.
There's more, for example <code>E.xpression(</code> without the dot <code>.</code> , which results in <code>[removed]</code> as well, as for instance in <code>QRegular[removed]</code>.