一个人独旅 Means a solo travel or journey The netizen uses it probably because

Relation Nicknames

注孤生 [zhù gū shēng]
A term used by netizens meaning to devote oneself to being alone for the rest of ones life It somewhat ...
我自己 [wŏ zì jĭ]
This simply means Myself signifying independence or selffocus The netizen may be emphasizing their ...
爱生活一个人 [ài shēng huó yī gè rén]
The netname implies a contentment with solitude even expressing a fondness for a solo lifestyle ...
梦游人的梦 [mèng yóu rén de mèng]
It represents a state of being somewhat lost or absentminded like a sleepwalker in their dream The ...
其实一个人挺好 [qí shí yī gè rén tĭng hăo]
The netizen means that being alone is also a good thing Sometimes people believe in the philosophy ...
独惯了 [dú guàn le]
Means being accustomed to loneliness or living alone Such netizens generally lead relatively reclusive ...