Im going to abstain on this one.
Waqar for a brief time was possibly the best quick I have seen. Someting that never crossed my mind watching Wasim.
Obviously he declined from a great to a mere good bowler after his sensational start.
To average under 20, with a strike rate of a wicket every 6 overs, a fifer every 2nd game and 5 and 1/2 wickets a Test is crazy good. However, around 30 Tests on it declined and his legacy has been a little tainted.
I don't know that it has. So long as people remain aware of this astonishing start to his career, rather than being shallow enough to purely look at the average they're given by a CricInfo player-page, I don't think his legacy will be tainted at all.
Most educated observers of the game - and this isn't even by any stretch limited to this forum - are well aware of it. I only wish I was following closely then - I have some memory of the summer of 1992, but not that much (I was just under 7 years old). As it is, it's only possible to appreciate, rather than revel in, the Waqar deeds.
Personally, I don't like to judge his early career by his later one. For a time, there's no two ways about it, he was as devastating as anyone could really hope to be. And longer than most - everyone fairly good has had the odd 2 or 3 Tests, or the odd series even, where they go like that, but not 30-odd games from the very start of a career.
The fact that he became a fairly middling bowler thereafter says just that - he was a middling bowler
thereafter. It doesn't detract at all from his early sensations.