Using regex for searching is fine. But it would be alot more powerfull if OO.o
let users to replace using regex. 

Consider you got a stting in your text is like;
<option value='something'>TEXT YOU NEED TO BE STRIPPED</option>

It might be me but I couldn't find regex replace to convert this sttring to
TEXT YOU NEED TO BE STRIPPED


Though it's possible to do a regex search to get TEXT YOU NEED TO BE STRIPPED,
in a Search field. OO.o only let usage of those groups in search value only it
does not carry them to replace value.

The expected behaviour should be using \\1 values in replace string so that you
can easily leave TEXT YOU NEED TO BE STRIPPED alone. 

That's the generic usage in s/// kind of regex lines in either vi and other
regex supporting editors.