Recently, this question appeared on ELL asking about the pronunciation of the word "gradle", which is not an English word, but a brand name of a piece of software.
Initially I (wrongly) assumed the question was about some extremely unusual ordinary noun, because it was spelled with no capital letter, and hence the question would be off-topic by virtue of being a simple dictionary-lookup, but later it became obvious that the question is in fact about a trademark for a minor product, and hence IMO is off-topic because it cannot be answered authoritatively, since the pronunciation of brand names is decided by the owner of the brand.
Two close-votes in, I closed this question as off-topic, following several precedents that questions about how to pronounce a single word is off topic - either because the word is a real English word and hence can be looked up in a dictionary, or it is not a real English word, and hence is not suitable for ELL in the first place:
However, since I've closed the question, four re-open votes have been cast on the "gradle" question, suggesting some dispute over this principle within the community.
Consequently, my question is this:
Are questions about the pronunciation of brand names, trademarks, fictitious names and so on be acceptable on ELL, or should they be closed as off-topic?