There are two recent cases which might be somewhat alarming to any LLLL.com owner:
Chewy agains chwy.com:
https://www.wipo.int/amc/en/domains/search/text.jsp?case=D2019-1845
Dell agains drll.com:
https://www.adrforum.com/DomainDecisions/1865104.htm
I personally think finding "confusing similarity" in four letter domains is taking it a bit too far...
Although in these cases, the respondents did not appear to have done the best they could.
Chewy agains chwy.com:
https://www.wipo.int/amc/en/domains/search/text.jsp?case=D2019-1845
Dell agains drll.com:
https://www.adrforum.com/DomainDecisions/1865104.htm
I personally think finding "confusing similarity" in four letter domains is taking it a bit too far...
Although in these cases, the respondents did not appear to have done the best they could.