I had often suffered in this place, but never more so than...

下面是我以前的一个解答，可参考：

Wins and losses matter everywhere, but perhaps nowhere more so than in South Korea.

【翻译】赢与输在任何地方都很重要，但在韩国或许尤为如此。（= 字面：但也许没有地方比得上韩国）

so 是个“替代词”，它可以替代一个词、一个词组，甚至表示并替代修饰前句谓语动词的一个程度副词。这句的用法便是。然后被 more 修饰。

详解so 被much 或 more 修饰：

1. Are you enjoying your holiday?   — "Very much so. 你的假期过得愉快吗？——非常愉快。《柯林斯高阶英汉双解词典》

——这个so 替代 I am enjoying my holiday 的, very much 表示程度，修饰动词 enjoying。等于说：

I am enjoying my holiday very much.

2. The band is popular and likely to become more so. 这支乐队很受欢迎，而且可能会越来越受欢迎。《朗文当代英语词典》

——这个 so 替代 popular。所以，more so = more popular。等于说：

The band is popular and likely to become more popular.

3. He's quite bright.  — well, certainly more so than his brother. 他相当聪明——嗯，肯定比他哥哥聪明得多。《剑桥高阶英语词典》

——这个 so 替代 bright。所以，more so = more bright。等于说：

He's quite bright.  — well, certainly more bright than his brother.

4. She had always been silent and thoughtful, and now she was more so than ever.

她一直就是一个沉静和深思的女孩子，现在她变得更是这样了。