In French, there is a strict divide between verbs of opinion and verbs of emotion.
Opinions and Beliefs (Indicative)
Verbs of opinion or belief, like penser (to think) and croire (to believe), state what you consider to be a fact. The clause that follows que takes the indicative.
| I think this social network is useful. | Je pense que ce réseau social est utile. |
| He believes you are watching the video. | Il croit que tu regardes la vidéo. |
Emotions and Feelings (Subjunctive)
Verbs expressing emotion—like aimer que (to like that), être content(e) que (to be happy that), and avoir peur que (to be afraid that)—require the subjunctive in the clause that follows que.
| I like that this social network is convenient. | J'aime que ce réseau social soit pratique. |
Notice the contrast with the first example: penser que triggers the indicative est, but aimer que triggers the subjunctive soit.
For regular -er verbs like supprimer (to delete) or signaler (to report), the present subjunctive forms look identical to the present indicative for most subjects.
| I do not like that you are deleting my comment. | Je n'aime pas que tu supprimes mon commentaire. |
| I like that you are reporting this link. | J'aime que tu signales ce lien. |
Whether you are talking about subscribing to a channel or sharing a link on a forum, your emotional reactions will consistently trigger the subjunctive.
| She is happy that you are subscribing to the channel. | Elle est contente que tu t'abonnes à la chaîne. |
| I am afraid he might share the link on the forum. | J'ai peur qu'il partage le lien sur le forum. |
In Practice
Compare these two sentences. A belief takes the indicative:
| You believe the subscriber is watching the video because it is interesting. | Tu crois que l'abonné regarde la vidéo parce qu'elle est intéressante. |
But an emotional reaction requires the subjunctive:
| I like that the subscriber is always positive. | J'aime que l'abonné soit toujours positif. |