Ah you killjoy. Never congratulated a teammate for their excellent batting in a game your team lost? All for perspective and enjoying it as a team, but no harm in people wanting to do well.
Congratulating people on a good performance is fine, as is taking pleasure in good performance of your own, as long as you don't become hubristic. But an interest in personal statistics can easily develop into an unhealthy obsession, and either ruin people's simply enjoyment of playing cricket, or develop into unhealthy competition between teammates that sours the club atmosphere. It is to be discouraged - I've seen it ruin several clubs.
In the club I run, we automatically retire batsmen at 25, we deliberately spread the bowling around so 5-fers are a rarity, and we refuse to publish individual statistics during the season (and discourage batsmen from keeping track). We award a champagne moment but not a player of the year or anything like that. We explicitly encourage and celebrate examples of selfless, team play, such as batsmen willing to risk their wicket and their average by trying to score quickly, and bowlers willing to bowl to a field, rather than search for glory. We find that this enormously increases people's enjoyment of playing.
I would seriously recommend any teams out there who struggle to hold onto their players consider adopting this approach.