How to show Bots the door

[Dragu]

Some China bots find some pleasure here onboard, perhaps some guys who sell arcade clones, may be ?
Like I drive an own forum with about 1000 members (not about arcade) there are some simple methodes to eliminate the pest.
First .htaccess
You just put inside all knots where you want no visit anymore, China, Korea and so on. There are websites that generate the .htaccess for you.
Second, a bottrap. I use bot-trap.de, there are other.
Together I have even guestbook open and not one spam over the last 3 years.

[paradadf]

@dragu we don’t want to block any country, but a solution to these spams would be nice.