Show HN: Just got "sued" by a company. Fun stuff.

Hi guys,

Two weeks ago, I launched my company (http://www.foodsterbox.com) in Belgium . Today I tweeted the following message (originally in French):

"Do you like #OtherCompanyName? Come discover Foodsterbox, the first Culinary box available in Belgium! http://blabla"

6 hours later I received an email with a PDF letter (I will get a proper letter through the mail too) basically saying that I can't use their name in a hashtag to "promote" my company and I was getting "sued" if I don't remove the tweet.

The other company is not a competitor, just doing the same kind of business as me "Stuff in a box every month".

Is this just a dumbass flexing his "muscle" to scare me away (for what reason, I don't know) or should I really remove the tweet?

Any help or feedback is appreciated.