While I'd support longer tags when moderator-approved, at the very minimum I'd like to see an error message when searching for a tag that is too long.

As an example, here's one that tripped me up for quite a while. If I search for datacontractjsonserializer on stackoverflow, I get results stating 0 questions tagged:

However, in reality there are 119 questions relating to DataContractJsonSerializer on stackoverflow - but they are tagged datacontractjsonserialize. It took me a while to realize that such a tag even existed, since the more natural datacontractjsonserializer is only one character too long.

Can the tag search results be modified to indicate that the tag being searched on is too long? Better yet, if there is a valid, known tag of 25 characters in length whose first 25 characters match the searched tag, can the results include a suggested redirection to the shorter tag?

While I'd support longer tags when moderator-approved, at the very minimum I'd like to see an error message when searching for a tag that is too long.

As an example, here's one that tripped me up for quite a while. If I search for datacontractjsonserializer on stackoverflow, I get results stating 0 questions tagged:

However, in reality there are 119 questions relating to DataContractJsonSerializer on stackoverflow - but they are tagged datacontractjsonserialize. It took me a while to realize that such a tag even existed, since the more natural datacontractjsonserializer is only one character too long.

Can the tag search results be modified to indicate that the tag being searched on is too long? Better yet, if there is a valid, known tag of 25 characters in length whose first 25 characters match the searched tag, can the results include a suggested redirection to the shorter tag?

(Update - Now that the limit has been lifted, I've introduced the tag datacontractjsonserializer on stackoverflow and have retagged the old questions.)