For some reason, when I edit, apostrophes get turned into strange symbols that consist of @'s and other weird stuff while some words might be surrounded with weird symbols.

Everything is usually fine unless I click the edit button, which I have to constantly in my position. -_-;

This is because RRR converts all symbols you put into a post/topic.
Strangely enough it only happens with apostrophes/quotes, ellipses, and a couple of other symbols.
Generally it only occurs when you take a lot of text from Microsoft Word and place it into a post/topic on the forum. (It attempts to convert the text, but almost always does that when copied and pasted from an outside source.)

The only solution I've found, is to edit out all of the apostrophes/quotes and replace them in the post/topic. =\

That's what I've been doing, but it's extremely tedious, even when using Word's replace feature.

Yeah, unfortunately there really is no other way to do it (and replacing it in Microsoft Word doesn't fix the problem because once you place it in the post/topic it will mess up all over again - you have to fix it in the post/topic). =\

Your best bet is to ensure you only use full edit. When using full edit it doesn't seem to react in the same way.

That's true, Full Edit seems to work better - but sometimes... not so much. =\