@MattN. I object to that. Analysis is way broader than what you say and it's a tag on the same level as (abstract-algebra), (set-theory), or (general-topology) for example.
Please: if you think about implementing an operation on that scale (roughly 2000 questions, after all) open a meta thread or post something in the relevant meta threads. There are very few people that visit this room or even know that it exists.
The actual reason I'm here is that I was wondering if one should introduce vector-lattices or riesz-spaces. There are enough questions that would justify such a tag but it might be a tad specialized. Any opinions?
Yes, it definitely is an interesting topic (and interestingly neglected in the mainstream). I'm sure that I've seen more than 10 questions that could be tagged that way, but let me think about it. I've introduced more than one tag and then didn't follow up on it...