Everything is good, the search post feature is very helpful, to make this feature are different with show the latest post from Bitcointalk, maybe you can add filter posts there. Not an important thing, just additional features maybe will help in the future.
Also, Link color need to change from blue with more soft color. I try to use this style:
a {
color: darkorange;
text-decoration: none;
background-color: transparent;
outline: none;
cursor: pointer;
-webkit-transition: color .3s;
transition: color .3s;
-webkit-text-decoration-skip: objects;
}
For me (maybe different experience with other users), background and the text color its doesn't match. if you are happy with that, its okay nothing to change.
example result:
Test - Test