Unfortunately, the new software does not support the "tags" in the same way. You are welcome to change that space as you please. If you remember your old tags, many people opted to include the tags in their signatures.
There is not more "tagging" ability. The tag fairy (at last report) is working on other options.
In order to clean up the title under your avatar, you go to "Personal Details" (hover over your username in the upper right). Under your avatar there is "Custom Title" - that's what shows up under your avatar next to your posts.
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