I guess you are referring to Daniel’s post about a file number limit of 100.000 in one library.
Three things (@shoeper: thanks for point out that this is not a technical limit) :
1.) This is a recommendation, not a limit.
2.) This is a general recommendation, not a recommendation for CE.
3.) The recommendation applies only to a single library, the Seafile server is not file number limited.
Also that is no limit he just recommended to not add more than 100k files to a library. I have a library with 246k files which works fine for a few years now and is heavily changed from time to time.