We have a few questions that are tagged with brand names:
- What is the best way to get superglue off a Corian countertop. [Corian]
- Replace a glass stove top…in unconventional ways? [Whirlpool]
- Humming refrigerator [Kenmore]
- I have no idea where my furnace filter should go [Lennox]
- maybe others that I missed...
In general I don't believe that they make good tags, since they don't tell me much about the problem that the OP is facing. Especially so when a brand name may not be widely known (for example, are people outside of North America familiar with Kenmore appliances?) The [whirlpool] tag was created for a question about a whirlpool tub, not about the appliance manufacturer, so the fact that its two uses can be confused tells me that it's not a good tag.
An exception would be where the brand name is synonymous with the type of product, in which case the brand name could be added as a tag synonym for that product. Some examples might be:
- Sheetrock for drywall in the US (and maybe Canada?)
- Corian for kitchen-counters (I know it has other uses, but I associate it with kitchen counters).
How should we handle these tags? Let them be, create tag synonyms, delete them when they pop up, retag the questions, blacklist them?
EDIT: A couple of relevant Wikipedia links: