So that the thread title contains useful information for the readers to see if they can respond.
A thread saying "Help" as the title is not much use.
If the thread title is "Help I have lost power to my house" then it is more informative and more people may respond.
As Richard said it's good to get some relevant info in the title instead of the attention seeking one word titles and it also gives better search results when people search the forum for info on a particular topic in future. I'd agree though that 25 characters can lead to unnecessary bumf being added so maybe 15 characters would be better.
No Cool titles allowed ....
Don't argue with the software - its full of Bloat .
( I too like short n snappy )
..No long winded ,forgot what I was taking about before I got to the end of my grammatically correct , boring sentance .
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc