Is it good practice to attach [SOLVED] to a solved question's title? I know this helps a lot when searching forums, but in a SO environment there is a visual clue for solved questions.
Marking an answer as accepted is the signal that the question is solved. We are not a forum, and there are mechanisms to look for questions that have answers and are accepted answers:
If someone's answer solved your question, mark it as accepted or upvote it. Please, don't edit questions to add
Related questions about this: