I'm switch from vBulletin 3.8 to XenForo and wonder why the custom fields (xf_user_field_value) are not created in the database as in vBulletin: UserID field1 field2 1(userid) 12345(icq) 67890(msn) 2(userid) 346676(icq) 7466046(msn) but in xenforo: user_id field_id field_value 1 icq 12345 1 msn 67890 2 icq 346676 2 msn 7466046 etc. In my more than 300,000 members, the extremely occupied memory is noticeable. In vBulletin approximately 27 MB required XenForo need for the same data after importing about 130 MB (in phpmyadmin by only 7 fields per user and not 20 as in vbulletin). Is the reason the Compact-Format? What the benefits? Sorry for my bad english . ). What is the reason?