GeoServer WMS meta-tile is often recommended to be used to overcome problems such as: 

 - point symbols close to tile edges are cut
 - labels are duplicated

I just need some clarification here:  WMS meta-tile does not completely guarantee that such problems gone. WMS meta-tile only reduces them. Hence, in term of point symbols, symbols close to tile edges are still cutted but the occurrence of this is much reduced.

Is it right? Many thanks.