Indeed and that's one of the reasons Parked Domains are used. One of the first thing we did after registering and trademarking our name, was to find all its common misspellings and variations with prefixes and such and also register those. Redirecting them all to open one and the same page is done in minutes literally...
The mentioned practises of typosquatting and cybersquatting can harm you only if you haven't protected your brand enough before starting your actual online presence. Thinking of that ahead can put such culprits into very serious legal predicaments.
I recall having a client contact me once, asking to close his hosting. The reason was he used the word "playboy" in his domain (it wasn't even some variation of their main site, their name was quite longer, it just included the word in it). So, cheeky ol' Mr Heffner found him and send a horde of lawyers after him :rolleyes2 And the guy wasnt' even trying to benefit from their name, he was just unaware that he was stepping in someone else's yard :shaky: So always be sure to know (or have someone know) what you're doing, so you can follow the proper procedures and avoid conflict.
P.S. Regarding the example in the original post, the particular words "Cologne" and "colone" depict a whole different area and variety of business ventures. It's as useless as squatting "colone" and "colon" (although not that funny
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