@Nouscat
An approach seems to work well in Mastodon’s structure + culture: instead of replying, create a separate post asking for advice. For example:
“I’d like to help solve the problem this person describes. [link] What can we do to help? I’d appreciate any advice!”
Somehow asking for advice in a post to your own TL just comes off really differently than asking for it in a reply to someone else.
Not a 100% rule, but it’s served me well.