At Stackexchange there are two tags for selenium and selenium2 to distinguish between both versions. I think this is important because they are very different from each other. On the other hand Selenium 1 will die some day and the tag could become inappropriate. What do you think?
According to the first answers, each part of Selenium should get its own tag:
selenium1 selenium2 selenium ide selenium grid
Wouldn't selenium1 and selenium2 be preferable to selenium and selenium2? As you say, one day selenium1 will be obsolete, and it'll become confusing for Selenium newbies looking for help, as they'll find a lot of obsolete stuff misleadingly tagged as just "selenium".
Better to enforce tags strictly now, so that they remain useful.
I suggest to keep following tags at the minimum -
Selenium1, Selenium2, Selenium IDE and Selenium Grid
Take for example the StackOverflow site - there are multiple tags for different versions of frameworks/toolkits/specifications/etc. and one tag that relates to the thing in general.
Imho, separate tags for versions should exist - they explicitly specify in a clear & straightforward way the problem domain and save time of both the author of the question & potential answers.
One example would be that I might have just started working with JPA 2.0 and became an expert in it for X weeks. I would be able to answer questions tagged "jpa2" but not "jpa1.0" since the framework changed significantly and i am not that familiar with 1.0 based on my 2.0 training.
