I am a 4 dan Go player
As for other games, I mostly enjoy the heavier pure-eurogames, and as a rule shy away from anything war-ish or ameritrash-ish
AoS expansions aside, expansions are rated on a 3-8 scale of:
will always use it/very good/worth getting/doesn't change much/i'd rather play base game/I really don't want adding this
I rate games as soon as I play them once, even if it's on internet, but I also record all my playings so you can generally see if my rating has any real experience with the game behind it.
Internet games: I log first 2-3 internet plays of a given title, especially of games I haven't played in real life. The only exception is Go - even an internet Go game is way more intense than any other face 2 face game, those I log all.
Trade: I am unlikely to be willing to trade single games to outside of Poland - paying half the game's cost to ship doesn't appeal to me. So in most cases if I don't have a few games you might want I will probably not trade...
Games played: I've added all games I played before being introduced to euros as played in 1990-01-01, with 10 plays for games I played A LOT. Games I've played since getting into the hobby, but before logging my plays are all entered as 2006-01-01. All this because their not being here was messing up my friendless' extended statistics.