Query for finding possible "Not An Answer" posts
Firstly, I would avoid using JOIN on it's own. INNER JOIN should be used instead, it's much easier to understand what is happening at a glance if you see INNER JOIN over JOIN

I would capitalise the AS and AND's, it just makes it more consistent.

Otherwise, the general formatting is pretty nice. 

I would maybe argue that the table aliases are a little unnecessary, Posts and Users are already pretty short and are more meaningful than the single letter aliases you gave them. I would consider aliasing the joined Posts table Answers or something similar.

Lastly, the largest point. You are checking if both the body and title do not contain the same string. You can concatenate body and title together, with a space to separate them, and check for the word/phrase you are searching for in that instead, effectively halving the size of your where statement.

SELECT
Posts.Id AS [Post Link],
LEN(Posts.Body),
Posts.CreationDate AS Date

FROM Posts

INNER JOIN Users
ON Posts.OwnerUserId = Users.Id

INNER JOIN Posts AS Answers
ON Posts.ParentId = Answers.Id

WHERE Users.Reputation &lt; 126
AND LEN(Posts.Body) &lt; 300
AND Posts.Body LIKE '%a href=%'
AND Posts.Score &lt; 3
AND Posts.PostTypeId = 2
AND Posts.CommentCount &lt; 3
AND Answers.ClosedDate IS NULL
AND Answers.FavoriteCount &lt; 3
AND Answers.CommunityOwnedDate IS NULL
AND Answers.Body+' '+Answers.Title NOT LIKE '%plugin%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%plug-in%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%tool%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%framework%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%API%'
AND Answers.Body+' '+Answers.Title NOT LIKE '%IDE%'
AND Answers.Body+' '+Answers.Title NOT LIKE '%library%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%cms%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%open source%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%application%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%software%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%tutorial%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%book%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%module%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%resource%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%engine%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%lightweight%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%opensource%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%technologies%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%simulator%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%compiler%' COLLATE SQL_Latin1_General_CP1_CI_AS
AND Answers.Body+' '+Answers.Title NOT LIKE '%editor%' COLLATE SQL_Latin1_General_CP1_CI_AS

ORDER BY LEN(Posts.Body) ASC


Here is the SEDE Query