Check it out:
- In some short thread, switch to Hybrid Mode in the Display Modes link in the upper right.
- Try viewing one of the monster threads, like the Post whatever... or What else are you doing... ones.
- Behold an out-of-memory error on the server, to wit:
Code:Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 6070 bytes) in /home/forums/httpd/showthread.php on line 1231
Not to mention that hybrid mode is almost totally useless, because whenever you click "Quick" to post a reply, it assumes that your reply is a child of that post, which is not necessarily the case. In other words, threads get much more deeply nested than makes sense. (The only way for a post not to appear as the child of another is to create it only using the button. That's ridiculous.