Welcome to AnimeSuki! You are Homura_Nyan, I presume?
Let's see, for tips on info/content,
Spoiler for wall of text tips:
I think you might be interested in checking out the General Anime sub-forum. That is where on AS I usually spend most of my time in. In there you might find certain topics that might interest you, an otaku lingo/japanese slang thread, a thread for asking for help about what anime/manga/game does a certain picture or video come from, and some threads for discussing a specific anime studio.
You might also be interested in browsing the sub-forums for your favorite series, like Madoka for example. As you might have seen, there are separate discussion threads for just about any topic from a specific episode, to a specific character, or even the series itself in general. In these threads you might find some interesting, intelligent debates about the topic of discussion. Aside from these discussion threads, there is usually an avatar & signature request thread and an image thread for all related images. Sometimes, I get some freebie animated gif avatars (100x100 px) there.
In the Fan Creations sub-forum there are stickied threads where you can request an avatar and a signature, there are also the personal threads of the sigmakers and designers. Many of them are good. Here is a large list of useful photoshop/gimp tutorials and guides. (Haven't had time to check them all )
In the General Chat sub-forum are all the topics unrelated to anime. Unlike MAL's Casual Chat forum section, however, most forum games are not allowed in there (I go to MAL for those. ). There is also no regular any-topic-goes Chat thread (I think they go to IRC for that, but I'm not really sure).
for forum-specific/technical tips,
Spoiler for tips:
first, the equivalent of MAL forum's Toggle Watching is, near the top of the thread, click on Thread Tools, then select Subscribe to this Thread. The list of subscribed threads are in your user Control Panel.
Advanced posting here has a lot of useful buttons for the BBcode you want to use in posts. (BBcode here is a little bit different from MAL's, and all these useful buttons are one of the things I love in this forum, another feature we don't have back there)
For skins, at the bottom you can choose a style for the forum (I personally use AnimeSuki Blue).
A quick reminder from the Forum Rules, the size limits for signatures on AnimeSuki are 500x160 px and exactly 50,000 bytes. 500x120 px if you want to place text under/above your sig (this is the reason why my sigs are always 500x120 px, even on MAL ). Avatars are limited to 100x100 px. (You probably know this already, from the looks of your nice set )
Last but not the least, there is a useful, working Search function here (unlike MAL's forums ).
Enjoy your stay and feel free to ask me for any more questions.
I will answer you to the best of my ability.