When adding a new content source to your social media wall, you can already curate the content by adding several source content filters.
You can include, exclude or combine different terms easily. For example:
kitten separately to allow posts which contain either “cat” or “kitten”.
"cat" (in quotes) to allow “cat”, but not as a substring (like in “catcontent”).
domestic animal to use posts which contain the exact phrase “domestic animal”.
dog to only use posts which contain both “cat” and “dog”.
NOT lion to not use any posts which include the word “lion”.
Here's an example of how you can apply filters in Walls.io
This is a source that includes all public Tweets for the hashtag #cats:
This popular hashtag will, of course, bring in a ton of posts. To refine your source, you can add additional filter keywords and/or hashtag-combinations. The following example will only show posts that include both the hashtag #cats and #play:
Now, you can go even further and add several filter keywords/hashtags. The next example shows posts that include #cats and at least one of the hashtags #play and #cute (in nerd-speak - several filter keywords constitute an OR-constraint):
If you want to be even more specific with the filters, you can also use exact match. Check out this article on how you can use exact filters to curate your social wall.