Improve Searching in DC by Tags

You might know that you can search posts in DC by Tags
starting in left upper  corner   and  

that's fine to start. But - based on some local feedback - some improvements
might make is more useful. actual the SELECT works .. IF TAGS CONTAIN %tag 
This spams you with a lot of results but often much more than useful
so the suggestions for extensions:

• ... IF TAGS CONTAINS ONLY %tag   // for 1 specific Tag
• ... IF TAGS CONTAIN  (%tag1,%tag2,%tag3,...)    // several specific tags
• ... IF TAGS NOT CONTAIN   (%tag4,%tag5)         // exclude unwanted content  
• ... IF TAGS CONTAIN  (%tag1,%tag2,%tag3,...)  AND NOT CONTAIN   (%tag4,%tag5) 

practical case:  ... CONTAIN ("global","python") and NOT CONTAIN ("ObjectScript")

the syntax borrowed from SQL is just to illustrate  the functionality. 
practical implementation nay use a list where you set + -

the​ proposal is also posted in IDEAS  https://ideas.intersystems.com/ideas/DPI-I-630​​​​​
for support and comfort I also suggest to forced tagging of all postings (and replies?)
in IDEAS https://ideas.intersystems.com/ideas/DPI-I-629
If you agree I appreciate your votes