BUG WATCH! - If you see a bug report it here!

[Melooon]

So yeah: I'm pretty confident it's broken!

Fixed! It was actually a Forum bug (and entirely my fault). The proxy returns a 403 when new images that have never been proxied before are being requested from a non ML domain. I was messing with forum headers, and apparently I stopped the forum from sending its referrer to the proxy, so the proxy had no idea who the forum was, and so it started rejecting any new forum images coming into the proxy   Thanks for the report!

[IndigoGolem]

Some HTML tags (maybe just em) are parsed in posts, and also using an ampersand to write tags that won't be parsed (<em>) doesn't work.

[Melooon]

Some HTML tags (maybe just em) are parsed in posts

Basic HTML tags are supported in posts as standard on SMF based forums:

Code

    <b>, <u>, <i>, <s>, <em>, <ins>, <del>
    <a href="">
    <img src="" alt="" />
    <br />, <hr />
    <pre>, <blockquote>

[IndigoGolem]

Basic HTML tags are supported in posts as standard on SMF based forums:

Code

    <b>, <u>, <i>, <s>, <em>, <ins>, <del>
    <a href="">
    <img src="" alt="" />
    , <hr />
    <pre>, <blockquote>

The issue is more that typing one of those basic tags outside of a preformatted code block with HTML entities (ampersand name semicolon, <) doesn't seem to work. So it's harder to reference these elements by their tags.

[poesu]

I've added custom CSS to my profile for default Melonland theme. It shows up fine, but if I tick the option "Use sidebar menus instead of dropdown menus when possible" in Look and layout all my customization disappears, even though the CSS is still there. I do want to use sidebars 

Thanks! Sorry for being silly 

[Melooon]

I've added custom CSS to my profile for default Melonland theme.

It's not a forum bug I think, you're CSS is just not correct, at a glance I don't think #admin_content should be in your selector path, if I edit that out in my inspector the style starts working