Hi, I voted "no" because spoiler tag may be used to include inappropriate content and additional time is needed to click and check every tag. Maybe it would be solution to include an option in profile allowing to always show spoilers unhidden, similar to displaying avatars/signatures, although I would still be concerned about site speed, that may decrease each time when new options are included.

And another solution would be to limit the amount of spoiler tags per thread (like videos and pics).

I doubt site speed would be a concern given that this feature is widely implemented in forums all over the internet without any lag problems.

Voted yet
As stated possibly abused but someone would check the spoiler and report it. Limiting spoilers per post maybe a useful feature as I don’t see needing more than say 3-5 in a single post being quite necessary.

Very useful in all sub forums where discussions of books, shows, movies, etc.
Just disallow from trading forums are no real use in there minus trolling

Im voting no because its been 7 years.