MobileRead has an "Ignore thread" function. If any threads are irritating, you may place those threads on "Ignore" and you will no longer see them. This would make only those threads you are interested in viewing the only threads you would see when you visit the lounge or any other forum section.
Just go to each thread you wish to ignore
Click on "Thread Tools"
In the dropdown menu, choose "Ignore this thread"
Done.
Repeat for each thread you wish to ignore.

<-- click to enlarge