Nah, it's not silly - you had bad experiences with a company, it's normal not to want to interact with them further. I'm personally not a fan of Microsoft because I spent my formative tech years installing Windows on family friends' PCs and had so much inconsistencies and issues that I have a very negative association with Windows and Microsoft.

I disagree with the DSL part, but it's in big part subjective so people have all sorts of different experiences and opinions.